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Calamitous computer glitches, such as those that led to the loss of NASAs 82 million Mars Climate Orbiter Spacecraft, could be prevented thanks to research by University of Strathclyde academics, says the university.
Dr Patricia Johann and Professor Neil Ghani, of Strathclydes Department of Computer and Information Sciences, aim to develop software that guarantees programs perform the computations they are designed to carry out.
Crucially, the software aims to stop programs performing unintended tasks, thus improving the reliability of safety-critical systems, such as those running nuclear facilities, aeroplanes and credit card transactions.
Professor Ghani, co-investigator on the 440,000 Engineering and Physical Sciences Research Council (EPSRC) funded project, said: In an economy as relentlessly digital as the modern worldwide one - in which everything from toasters to interpersonal communications and global financial services are computerised - the need for formally-verified software cannot be overestimated."
Ghani said formal verification uses mathematical techniques to prove that programs actually perform the computations they are intended to perform, for example, that text editors really do save a file when a "save" command is issued, or that automatic pilots really do correctly execute flight plans.
Formal verification also ensures programs avoid performing unintended computations, such as leaking credit card details or launching nuclear weapons without authorisation.
Ghani said, Since programmers make 15 to 50 errors per 1,000 lines of code, and since repairing them accounts for some 80 percent of project expenses, the ever-increasing size and sophistication of programs makes formal verification increasingly critical to modern software development.
We aim to revolutionise a key technology within program verification, namely logical relations, by providing a framework for their development and use that is principled, conceptually simple, reusable and uniform, rather than ad hoc.
The Mars Climate Orbiter Spacecraft was lost in September 1999 because one NASA team used imperial units while another used metric units for a key spacecraft operation. Ghani believes Strathclydes formal verification research could lead to similar errors being averted in the future.
He added that current testing procedures for software - which involve repeatedly running programs hundreds of times to detect errors - are "inadequate". Ghani said: Most software is tested by running it a certain number of times, which is cheap and easy to do. However, it is not very certain as it might have failed on the next test had one more been run.
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Strathclyde University makes planes, nuclear reactors and spacecraft bug free
Zoostr has released its software for small businesses in India. Zoostr is a free business software that, as claimed, helps very small business owners in becoming more productive whether it's creating invoices, price quotations, meeting notes or even SMS Marketing campaigns.
Zoostr is designed to make all small business admin and marketing tasks as simple and as quick as possible so business owners can concentrate on generating revenue and getting new clients through the door.
"Zoostr is out to shake up the small business software market. We are providing a great software free of charge and will be offering valuable premium features in the future at a reasonable low monthly or yearly cost." says Gal Ofel, founder and CEO of Zoostr. "Our mission at Zoostr is to always strive to help our users be more effective and more successful and we have some big plans for future features to do just that."
Zoostr allows anytime, anywhere access on PC, tablet, or smartphone, giving the small business owners the ability to carry out admin tasks on the move. For example creating a price quotation or recording meeting notes or checking who has outstanding invoices, and calling a customer direct from inside the software. It also provides SMS marketing tool that lets small business owners send bulk SMS messages for free to their customers to help drive new business.
"Zoostr is unique in a number of ways," says Spencer Waldron, CMO, Zoostr. "Firstly, it is designed for very small business owners like the self-employed, partnerships, micro businesses, independent professionals, and small scale units, etc. To our knowledge this has never been done before. Secondly, we have been building the product based on user feedback from the beginning, and lastly it is designed 100% for the Indian market. We are seeing people reacting to it in a very positive way and have seen 1000's of sign-ups in the first couple of weeks of it being released."
In planning for more than a year, Zoostr has been designed with Mobile in mind, while supporting PC. Although smartphone penetration is still low in India it is growing at a breath-taking pace. Smartphones and Tablets represent a huge opportunity for small businesses in India to be more effective and more successful. Zoostr intends to help independent professionals and micro business owners take advantage of this in the coming months and years.
You can sign up for a free account at the Zoostr website.
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