Archive for Marzec, 2012

Airtel launches mobile services in Rwanda

By admin, 30 marca, 2012, No Comment

Committed to adding value to the economy and community:

• 83 days to build network from start – fastest Greenfield launch in history of Sub-Saharan Africa

• To invest USD 100 million over the next three years

• Operation to generate direct and indirect employment opportunities in the country

• Airtel to contribute to the Rwandan government’s vision of transitioning to a knowledge-based economy

Bharti Airtel (“Airtel”) ( today announced the launch of its operation in Rwanda, expanding its footprint on the African continent to 17 countries. Airtel has already said that it will invest over USD 100 million in its operations over the next three years and generate direct and indirect employment opportunities.


Commenting on the launch, Mr. Manoj Kohli, CEO (International) & Joint MD, Bharti Airtel said, “We are delighted to launch our operations and bring Airtel to the people of Rwanda. We believe that Rwanda is an extremely promising market and this launch further strengthens our footprint in eastern Africa. It will be our endeavour to bring world-class and affordable services to our customers in Rwanda and add value to the economy. We would like to thank the Rwandan government for giving us this opportunity, and we are committed to contributing to their aim of bridging the digital divide in the country.”

“The government welcomes Airtel into our country. We are looking to partner with the private sector to provide good quality, accessible and affordable telecommunications services,” says Right Hon. Dr. Pierre Damien Habumuremyi, Prime Minister, Rwanda.

Hon. Dr. Habumuremyi added: “We are especially excited about the prospect of connecting Rwanda with the rest of the East African region and, indeed, with the rest of Africa. As Rwandans begin engaging in business ventures and looking for regional partners, telecommunications companies – like Airtel – that are able to provide access to a pan-African wireless network, become a crucial part of expansion.”

Airtel has also partnered with IBM in a move that will enable the teleco to offer superior customer experience in Rwanda. The partnership will see IBM deploy and manage the information technology (IT) infrastructure and applications to further support Airtel’s goal of providing innovative mobile services.

“As part of our strategic services agreement, we are happy to assist Airtel with its entry into the Rwandan market and ensure the very highest levels of support,” says Steve Martin, IBM Vice President and Senior Project Executive, Airtel Africa. “Rwanda is an important market for IBM and we are actively strengthening our local presence and increasing our ability to serve our customers and partners in the country.”

Ericsson, the world’s leading provider of services and technology to telecom operators, was selected to manage the network from end-to-end, including OSS/BSS solutions and managed services.

Lars Lindén, head of Region Sub-Saharan Africa for Ericsson, says: “This solution is using the latest Ericsson portfolio, and will be the first Airtel network designed as an all-IP solution. That means Airtel will be able to provide advanced services to its subscribers, expand quickly to accommodate quick growth, and keep operating expenses down.”

Additionally, this launch has set a record. Lindén adds: “The inaugural call was placed on the system on March 7. It took just 83 days to build this network from the start – the fastest Greenfield launch in history in Sub-Saharan Africa.”

Rwanda is among the fastest growing telecom markets in Africa and, according to the National Statistics Institute of Rwanda, mobile penetration in the country was at 38.4 per cent as of July 2011. The rapidly growing private sector – which includes telecommunications infrastructure and ICT – presents many opportunities for the development of the industry and the country’s economy. In fact, according to the World Bank, each 10 per cent of broadband penetration results in a 1.3 per cent increase in per capita GDP growth in developing countries.

Airtel was awarded the license by the Rwanda Utilities Regulatory Agency (RURA) last year to operate 2G and 3G GSM mobile services. Currently, the Airtel brand is present in both Francophone and Anglophone markets across the continent, spanning Burkina Faso, Chad, Congo Brazzaville, Democratic Republic of Congo, Gabon, Ghana, Kenya, Madagascar, Malawi, Niger, Nigeria, Seychelles, Sierra Leone, Tanzania, Uganda, and Zambia.

Distributed by the African Press Organization on behalf of Bharti Airtel Limited.

Kaspersky Lab Tops Independent Security Vendor Survey

By admin, 30 marca, 2012, No Comment

Kaspersky Lab continues to lead the way among top IT security vendors, according to the results of InformationWeek’s 2012 Antivirus and Anti-malware Vendor Evaluation Survey. Among the nine vendors rated, Kaspersky Lab shared the highest ranking for overall performance and took the top spot for AV/anti-malware features with a ranking of 83 percent.



The InformationWeek 2012 Antivirus and Anti-malware Vendor Evaluation Survey asked 386 IT professionals to gauge their impressions of anti-virus/anti-malware vendors. Respondents only ranked vendors they had used or evaluated within the past 12 months. The core of the survey asked two sets of questions: one focused on the vendor overall, including price, general performance and product reliability, while the second focused on product-specific features such as virus and malware detection and removal.
Kaspersky Lab was ranked first or second in all of the nine feature evaluation categories ranging from Central Management to Platform Support. There was especially high praise for its accuracy of detection, efficient signature-based detection and ability to spot malware and viruses before they are executed or installed.
Detailed information about the survey can be found at by following this link:

Rural North West Teachers to Benefit from ICT Training

By admin, 30 marca, 2012, No Comment

A firm understanding of Information and Communications Technology (ICT) is essential in the modern world. However, it is impossible for teachers to develop such knowledge in learners if they themselves have no real grasp of ICT. This is why the Internet Service Providers` Association of SA (ISPA) is continuing its ‘Train the Teacher’ initiative in the North West and Limpopo provinces between March 31 and April 4.

The project, run in conjunction with CoZa Cares, with training delivered by Avuxeni Computer Academy and SchoolNet SA, has already provided ICT skills training to more than 2 000 teachers across South Africa. A large part of the initiative targets schools in under-resourced and rural areas and is set to deliver Beginner and Intermediate level courses at a total of 25 schools in North West Province.

Some 250 teachers from schools in Lichtenburg, Leewdoring, Vryburg, Sannieshof, Klerksdorp and Ga-Rankuwa will benefit from these courses. Says Fiona Wallace, Chairperson of the ISPA Teacher Training Working Group: “The courses aim to equip teachers with practical computer skills. This will enable them to use technology to produce learning materials, subject plans, assessments and marks records, as well as to complete administrative tasks more efficiently.”

In addition, she indicates that a specially-selected group of more advanced teachers are receiving training in project-based use of the ICT environment to improve classroom teaching. “ISPA has long recognised the growing need for ICT training in previously disadvantaged communities,” states Wallace. For this reason, the organisation established the ‘Train the Teachers’ Project more than a decade ago, in December 2001.

“In an ideal world, every teacher would have access to thorough, practical training in the integration of technology into the classroom. ISPA realises the importance of this if these teachers are to help schoolchildren prepare to take their rightful place in a connected world. By providing these teachers with a proper understanding of technology, they are then able to utilise it as a valuable teaching aid. Moreover, because it can help teachers to complete routine administrative tasks more efficiently, it means they have more time to focus on quality teaching.”

Wallace points out that this intervention is clearly making a small but valuable contribution to closing the gap between rich and poor schools in the country. She adds that the programme has grown from strength to strength since its inception and ISPA believes it will continue to play a vital role in driving IT knowledge and competence into rural communities.

“Not only do these courses have a positive impact on the teachers’ performance in the classroom; the teachers inevitably pass their IT skills on to learners and other members of their community.

Therefore, the ‘Train the Teacher’ initiative is helping to seed computer literacy in many of our nation’s under-resourced communities,” concludes Wallace.

Norton Mobile Security Protects Samsung Galaxy Smarthphone Users Worldwide

By admin, 30 marca, 2012, No Comment

Norton by Symantec (Nasdaq: SYMC) announced that Samsung Electronics will provide Norton Mobile Security, an application for Android OS, to select smartphone users worldwide. Samsung will offer a full-featured, complimentary 90-day subscription of Norton Mobile Security in multiple languages to Samsung GALAXY users through Samsung Apps (

“We are pleased to extend our valued relationship with Samsung by helping to protect more of its customers’ devices and data from theft, loss and mobile threats,” said Kara Rawden, Senior Marketing Manager Middle East & Africa, Consumer Business Unit, Symantec. “With smartphone sales now outpacing PC sales, cybercriminals are devising new threats everyday to steal from mobile users. Consumers need to be protected more than ever.”

Norton Mobile Security combines anti-theft features with powerful antimalware to protect user’s important data from loss, theft, viruses and other threats through the following features:
Remote Locate — Shows you the location of your smartphone so you can find if it’s lost or stolen.
Remote Lock — Lets you remotely lock your lost or stolen phone via the Internet or SMS to keep critical data safe and block unauthorized access.
Remote Wipe — Lets you remotely erase the data on your phone via SMS, blocking access to your private information. In addition, your phone is instantly locked if its SIM card is removed or replaced, so it can’t be used with another SIM card.
Anti-malware — Scans all files and application updates downloaded to your mobile phone and automatically detects and removes threats without slowing you down.
SD Card Scanning — Gives you the option of automatically scanning SD (Secure Digital) memory cards for threats when you plug them into mobile phone.
Auatic LiveUpdate tom— Automatically downloads and installs security updates keeping you a step ahead of cybercriminals.
Norton Mobile Security can be downloaded from the ‘Utility’ category in Samsung Apps or by entering ‘Norton Mobile Security’ into the search query at the Samsung Apps. Norton Mobile Security supports all Samsung Galaxy Android smartphones, including Galaxy S2 LTE, Galaxy S2, Galaxy Neo, Galaxy S Hoppin and Galaxy A.

Measure what matters

By admin, 30 marca, 2012, No Comment

Companies need to tie social media measurement to business metrics that really matter to their organisations rather than getting caught up in buzzwords such as ‘engagement’, ‘sentiment’ and ‘reach’. That’s the word from Richard Mullins, director at Acceleration.

“It is good to see that many South African companies are looking more carefully at measuring social media metrics as they roll out their social campaigns. But they also need to think carefully about what it is that they are measuring and how it relates to their business goals,” says Mullins.

Mullins says many companies are measuring the performance of their social media campaigns using a range of analytics and online reputation management (ORM) tools. With these tools, they are able to get some idea of their social media reach and perhaps even a feel for marketplace sentiment. They may be able to identify brand advocates and detractors and get a sense of their reach and influence, or identify how many people are talking about their products or sharing their content.

What most brands are not yet able to do is to understand how social media ‘engagements’ map to business outcomes such as customer conversions or how much their investment into social media channels is costing them against the value it delivers.

“It’s nice to know, for example, that sentiment about your product is largely positive. But it is somewhat meaningless unless you can understand how that translates into visits to your Web site, customer conversions or increases in customer Web searches for your products,” continues Mullins.

According to Mullins the challenge that most companies face in digging deeper into social media data for the answers to really important business questions is that their marketing data exists in silos spread throughout the enterprise – CRM systems, email databases, Web analytics tools, social platforms and more.

Once organisations start putting the right enterprise architecture in place, they can begin to draw information from a range of sources to answer more complex questions. The fundamental question that companies must ask themselves at this point is not which social media metrics they want to measure, but what they want to measure about their business, Mullins says.

“This means you’ll start out asking very different questions. Rather than asking about Klout scores or followers, you’ll be asking how customers interact with you in social environments and how these translate into the actions you desire from them. You’ll start asking how social media acts as a branding vehicle, a direct marketing tool, or a combination of both. Each of these strategies may have value, but the question is which of them is right for your business and its desired outcomes. You will look at social media measurement tools and technologies in a completely different way and begin harness them to make social media work for your business,” Mullins concludes.

The Notebook Company changes its name to The New iPad Company

By admin, 29 marca, 2012, No Comment

The Notebook Company – one of South Africa’s most successful notebook and accessories retailers – has announced it will be changing its name to The iPad Company due to management’s belief that iPads are usurping laptops in popularity, and that the world is now entering the post PC age.

The Notebook Company ( was established in April 1998 and sells a wide range of brand name laptops, including Asus, Dell, HP and Compaq.

Commenting on the name-change, Christopher Riley, the founder and MD of The Notebook Company, said that “in those days” it appeared that the PC business was going in the directions of notebooks – “and the word then meant thin laptop”. “Lately,” however, “said Riley, the two words have become interchangeable. We started selling iPads two years ago -in 2010. Growth was rapid and for our financial year ending
February 2012 we saw that iPad sales amounted to 35 % of our sales.

“Due to the shift in market trends towards iPads – which appears to be inexorable – we decided to re-brand as ‘The New iPad Company’.

“We know there might be Trademark infringements, but we have discussed it with our legal advisors – and have set funds available to defend such Trademark infringement battles. We are not new to this as we had to re-brand one of our website to instead of - and have quite a lot of experience receiving letters from copy right attorneys, Adams and Adams.”

Riley said the company “has taken the first steps” of registering and – and will be completing its rebranding during the month of April. “Our customers have spoken and we are delivering. We were one of the first companies in South Africa to offer the iPad 2 range last year – and we were the first to have the whole range of the new Apple iPad 3 this year.’’

Vox Telecom at the forefront of IT consumerisation

By admin, 29 marca, 2012, No Comment

Vox Telecom’s new suite of enterprise mobility products and services aims to solve the biggest problem CIOs currently face: The security and integration headaches introduced by the proliferation of smartphones, tablets and other mobile devices in the workplace.

“It’s become more and more difficult to safeguard critical company data,” says William Hardie, Executive Head of Enterprise Mobility at the Vox Telecom group. “If your directors are carrying sensitive financial information around on their tablets, or attached to email messages on their smartphones, you have a security breach waiting to happen. Yet IT consumerisation is here to stay: The boundaries between corporate IT and personal computing have broken down.”

As part of its mobility strategy, Vox Telecom has secured the distribution rights in South Africa for MobileIron, which Hardie describes as a global leader in the provision of agnostic mobile device and multi-OS management for the enterprise – as outlined in Gartner’s 2011 Mobile Device Management Magic Quadrant report.

“The key challenge is to seamlessly integrate these “personal” smart devices, with all their proprietary protocols and operating systems, into the traditional corporate IT environment,” says Hardie. “MobileIron has strong partnerships with Apple, Samsung, Android, Google, Microsoft, Nokia, RIM and Cisco and many of the large global mobile operators. This has enabled them to create a system that offers a simple, seamless way to bring mobile devices safely and securely into the corporate IT environment.”

Hardie says the software offers tools that will protect not only data, but also company resources – for example, by limiting the apps that may be downloaded or used over the company network – without compromising users’ private access to what is most often their own property.

Vox’s enterprise mobility suite will also provide a platform on which Vox customers can develop their own mobile apps, without having to develop in-house capacity across several different operating systems.

For Vox Telecom, says Hardie, the move into the enterprise mobility space is also an opportunity to expand its strategic relationship with its clients. “Mobility and IT consumerisation are increasingly starting to dictate enterprise IT strategy,” he says. “Vox Telecom is well placed to help our customers navigate this new terrain.”

BlackBerry Makes Life in the Fast Lane Easier for Edith Venter

By admin, 29 marca, 2012, No Comment

Edith Venter, socialite and high-profile event planner, depends on her BlackBerry® smartphone to keep on top of a high-pressure job where organisation, responsiveness and attention to detail really matter. Now she can work wherever she is, without dragging a heavy notebook everywhere she goes.

Venter, who runs her own events management company called Edith Unlimited, became a BlackBerry fan when BlackBerry smartphones were first introduced in South Africa. Recognising the potential benefits of the BlackBerry solution in her job, which is all about staying connected with clients and in charge of an overwhelming schedule, she has enthusiastically embraced the BlackBerry platform.

Due to the nature of her work, Venter is rarely in the office. She spends a great deal of her time at high-profile functions attended by powerful and influential people. Her constant mobility spurred her interest in the BlackBerry smartphone. “Her BlackBerry® Bold™ 9900 smartphone has made life so much easier. When we (Venter and business partner Tammy Theron) are travelling around the country and into Africa doing business and events, our emails reliably and efficiently reach us,” she says.

Venter credits the BlackBerry smartphone with transforming the way she works when out of the office. “Instead of dragging your heavy laptop around with you, you just pop your BlackBerry smartphone into your pocket and you’ve got your office with you.” This in turn has improved how responsive she can be to customers and suppliers.

“If a client wants to know if she can change the number of guests from 500 to 600, you can give her an answer immediately. I can say yes and adjust the rest of the organisation accordingly. I can immediately email the suppliers, caterer, venue, and décor person to say the number has changed,” says Venter.

“It’s instantaneous, which for me is brilliant.”

She also uses the BlackBerry smartphone camera to document events she organises. “If we’re at a food tasting or setting up décor, and I want to show my client or have it on record, the camera is very, very useful,” says Venter. “The picture quality is excellent. I don’t even carry a camera with me anymore.”

Thanks to the popularity of BlackBerry smartphones in South Africa, many of Venter’s customers and suppliers are also BlackBerry users. This enables Venter to take full advantage of the immediacy of popular instant messaging application BBM™ (BlackBerry® Messenger).

“I have them all on my BBM,” says Venter. This helps her to keep in touch with customers and suppliers instantly, keeping them up-to-date on event preparations. BBM is also a useful marketing channel for Venter. “I can keep my customers informed with words and pictures of the events I’m organising and attending,” says Venter. Her BBM updates often spark conversations with customers.

Venter also recently started using the BlackBerry® PlayBook™ tablet. “I am so thrilled,” she says. “The bigger screen makes it even easier to send emails and browse the web”, says Venter, who is delighted that the BlackBerry PlayBook is seamlessly linked to her BlackBerry smartphone for an improved communications experience. “I was never interested in other tablet devices because I didn’t want to have to stop using my BlackBerry smartphone.” says Venter. “I would never give up my BlackBerry. It’s become a way of life.”

Take control of enterprise risk, facilitate governance and compliance

By admin, 29 marca, 2012, No Comment

Regulatory compliance has become of increasing importance in recent years, as a multitude of new regulations and legislation has forced the arm of businesses into obedience at the risk of hefty financial penalties. However, compliance is only one aspect of a wider field of Enterprise Governance, Risk and Compliance (GRC), a discipline that evolved as part of a growing global need to ensure sustainability, accountability and sound business practices.

Managing risk lies at the core of any GRC endeavour, since if risks are not managed adequately they have the potential to result in decreased profitability, non-compliance to regulations and laws and ultimately a failing enterprise. Enterprise Risk Management (ERM) is the pivot upon which GRC turns, facilitating both good corporate governance and compliance, and is a vital part of the agenda for businesses of all sizes, large and small.

“Managing risk does not mean eliminating risk, since without risk organisations could not exist and remain profitable. However, these risks do need to be taken on board and brought to an acceptable level. With every business in South Africa subject to at least 80 or more Acts of Parliament that must be complied with, ERM is vital to ensure compliance,” says Ben Pieters, Executive at ESPconsult. “While large corporates and State Owned Entities are able to employ teams of risk managers and legal experts to analyse the relevant Acts and Regulations, smaller businesses and micro enterprises simply cannot afford such luxuries.”

While having the funds to employ teams of full time risk managers and legal advisors can be of benefit, many large organisations still view ERM as a tick-box exercise. They regard it as something that must be done in order to comply and avoid penalties but not something which will contribute positively to the organisation.

“Nothing could be further from the truth, however,” says Greg Bogiages, MD of Cortell Corporate Performance Management. “The excuse that small organisations cannot afford risk management is negated when you view ERM as a vital business process that will not only facilitate compliance, but improve profitability. Businesses should align their strategic plans with their risk management disciplines. Managing risk is not a ‘one size fits all’ concept, since each organisation’s risk appetite differs, and ensuring that a risk management solution is tailored to the individual needs of the organisation is vital.”

The reality is that risk, while it is part of business, can be detrimental if it is not managed correctly. Risk management software is a useful tool as it assists with automating and creating ‘work flow’ for procedures associated with risks and risk events. It also removes the risk of human error when it comes ensuring that processes are followed accordingly.

However, software alone is not sufficient to ensure risk is managed effectively. Once software has been installed, it is vital for risks to be identified and defined at various levels throughout the organisation, in order to create a risk framework. Consultants and experts in the field of GRC play an important role in ensuring that all risks are identified, incorporated into ERM tools, and processes around these risks have been defined and implemented.

“It is also necessary to workshop controls and identify the risk owners for each individual area. Without a risk owner, accountability cannot be assigned, which means that in effect the risk cannot be managed because it is not understood who is responsible for mitigating it,” says Pieters.

“Software acts as an enabler that eases the risk management workload, but true ERM relies on a top-down, culture driven approach. Managing risk requires the people within the organisation to understand what the risks are and why they need to be mitigated and managed, which often involves a change management process,” he adds.

Only once risks have been identified and controls put into place can risk be mitigated. Implementing a real risk management discipline, with the necessary controls and procedures in place and the correct combination of software and organisational culture, ensures that an enterprise operates in an environment of sound governance. It also helps to identify legislation and regulations as areas of risk, helping to ensure compliance. Aside from these soft benefits, improved risk management means a lower risk profile, which typically leads to decreased insurance costs, which can directly benefit the bottom line.

“ERM has multiple benefits for organisations of all sizes, from improved governance and compliance to better accountability, improved profitability and increased shareholder confidence. The real question is not ‘can your organisation afford to implement ERM’, but can it afford not to,” Bogiages concludes.

KPMG: Africa embraces consumer convergence

By admin, 29 marca, 2012, No Comment

When it comes to adopting new technologies and using social media, South African consumers and businesses are comparing favorably to the rest of the world, according to the recent KPMG Consumers & Convergence Report.

“When we launched our first study in 2006, there was no iPhone, iPad, or an apps market. Facebook and Twitter were in their infancy. Today, consumer adoption has gained pace even faster than some of the technology developments that are taking place,” says Frank Rizzo, managing partner: IT Advisory at KPMG.

According to Rizzo, people do not care about the hardware they are using. While they are certainly brand conscious, users care about how devices are used to consume and generate content and how companies interact with them using their platforms of choice.

“The converged lifestyle has significant implications for businesses across sectors in the way they engage and build relationships with their customers. Globally, we are seeing people increasingly willing to share their usage patterns with businesses if they have a compelling reason to do so, for example reduced cost of goods or other incentives,” he says.

But, when it comes to privacy and security, South African respondents are more concerned about these issues than global and Nigerian respondents, who participated in the survey for the first time. As an example, 61 percent of local respondents are very concerned about the threat of unauthorised parties gaining access to personally identifiable information while only 21 percent of Nigerian respondents are concerned about this.

Click to buy

With people using a myriad of devices to access information, more than half of South African respondents (54 percent) are using mobile phones to locate their nearest retail store with Nigeria in the lead with 68 percent of respondents. However, local respondents are ahead of global figures and those from Nigeria when it comes to using mobile devices to make payments.

“In this modern age of engagement, it is clear that businesses need to build trust with customers to succeed online. Users are continuously asking themselves whether they trust a company enough to share their personal data with them,” he says.

Interestingly enough, most online purchases in South Africa being done on a computer are for flights and vacations (50 percent), ahead of global (35 percent) and Nigeria (one percent). South Africans are also more likely to purchase low-value goods such as CDs, DVDs, books and computer games online (34 percent), than global (29 percent) and Nigerian (three percent) users.

“We have also seen that while South Africans use their credit cards to make online purchases, Nigerians prefer using Payal or wire transfers as a means of making payment. This could be attributed to the effectiveness of South Africa’s banking system when it comes to online payments,” says Rizzo.

Being social

South Africans use social networking more than compared to global trends and almost double when compared to Nigeria. However, local users are still more concerned about sharing personal identifiable information than the Nigerian market. This changes when companies offer users incentives so there are definitely idealistic and pragmatic viewpoints when it comes to personal information.

“While local respondents are concerned about privacy and security from a personal perspective, they are quite happy to use cloud computing services to store contact information and address books. Storing banking information on the cloud is also something 31 percent of local respondents would do as compared to only eight percent of Nigerian respondents,” adds Rizzo.

Content pricing concerns

Perhaps more concerning for content companies is that South African and Nigerian respondents are very price conscious and not willing to pay for online content.

“While many content providers are looking at implementing a paywall model, it seems that consumers will generally find alternative sites to get their news and information from. Content providers who are monetising usage patterns do seem to gain a bit of traction for users who want to see digital value-adds to content such as content apps, multimedia elements and more interactive and engaging content,” believes Rizzo.

For Rizzo, the report highlights the extent to which the South African and Nigerian markets are embracing technology across sectors to interact with not only friends and families, but also to engage with brands.

“Consumer expectations when it comes to content and brand engagement are changing at a phenomenal rate. The companies that will succeed in this new era of engagement will be the ones who can build trust and who can interact with their clients on the platforms they choose,” concludes Rizzo.

wielkoformatowe wydruki Lublin kolorowe wielkoformatowe skanowanie kolorowe skanowanie Lublin kopiowanie wydruki lublin centrum tanie wydruki lublin wielkoformatowe format skanowanie lublin hempla lublin wydruki lublin centrum projekty powykonawcze dokumentacja powykonawcza skanowanie do pliku wielki format