Reverse Enginnering

Reverse Enginnering

     The term reverse engineering as applied to software means different things to different people."Reverse engineering is the process of analyzing a subject system to create representations of the system at a higher level of abstraction." It can also be seen as "going backwards through the development cycle". In this model, the output of the implementation phase (in source code form) is reverse-engineered back to the analysis phase, in an inversion of the traditional waterfall model. Reverse engineering is a process of examination only: the software system under consideration is not modified (which would make it re-engineering). In practice, two main types of reverse engineering emerge. In the first case, source code is already available for the software, but higher-level aspects of the program, perhaps poorly documented or documented but no longer valid, are discovered. In the second case, there is no source code available for the software, and any efforts towards discovering one possible source code for the software are regarded as reverse engineering. This second usage of the term is the one most people are familiar with.

          Reverse engineering of software can be accomplished by various methods. The three main groups of software reverse engineering are:

·                    Analysis through observation of information exchange, most prevalent in protocol reverse engineering, which involves using bus analyzers and packet sniffers, for example, for accessing a computer bus or computer network connection and revealing the traffic data thereon. Bus or network behavior can then be analyzed to produce a stand-alone implementation that mimics that behavior. This is especially useful for reverse engineering device drivers. Sometimes, reverse engineering on embedded systems is greatly assisted by tools deliberately introduced by the manufacturer, such as JTAG ports or other debugging means. In Microsoft Windows, low-level debuggers such as SoftICE are popular.

·                    Disassembly using a disassembler, meaning the raw machine language of the program is read and understood in its own terms, only with the aid of machine-language mnemonics. This works on any computer program but can take quite some time, especially for someone not used to machine code. The Interactive Disassembler is a particularly popular tool.

·                    Decompilation using a decompiler, a process that tries, with varying results, to recreate the source code in some high-level language for a program only available in machine code or bytecode.

          Using process re-engineering technique for Database Manager, our system will help small enterprises to efficiently manage their accounts and stocks. According to their need, customers can also design their own databases. Thus, it will lead them to more flexible system and will improve their functionality.

          The objective of the Tranformation Team is to re-engineer the way in which small enterprises handle their data and stocks. It will enable them to have a great harmony in business and to progress.

This is accomplished through:

·                    Operational Discovery Audits - At the beginning of all strategic engagements Operational Discovery Audits are conducted by a team of enterprise vice presidents, executive advisors, and transformation engineers. During this 2-day, onsite visit we interview every level of the organization including front line staff, managers, and executives to get a better understanding of how the enterprise operates.

·                     Current/Future State Analysis - During phase one of implementation, members of the team will work with organisation's team members to document in detail current enterprise operations. Once there is an understanding of how the organization presently works and its current management system, the Transformation team will work to create swim lane diagrams outlining the optimal future state processes.

·                     On Path Progress Reports - Our transformation engineering team helps you make a smooth transition from your current management system to go-live with your new system to successful on-going performance via our reporting process. Included in the maintenance of your customer management system are on six month check-ups after each module go-live. This analysis provides you feedback on your progress towards achieving optimal sustained performance.