The software is to use technology as a means of service to the business of the enterprise value chain through information technology to achieve critical business value chain of customers and ultimately improve the quality of business units, as well as the software development company to get the real economic benefits .
Select the software project, we must first examine the trade, business software applications and objectives, in order to ascertain the value of the project to build the software.
2. Assessment of project risks, benefits and costs
The main risk of the project is technical difficulty, whether technical capability, financial capability and resources can afford, whether it is business priority project implementation, compliance with industry standards and national policies.
The project proposal
The following parts: introduction user units, project background project or product, the demand of the source and destination; internal and external environment, organizational structure, existing IT infrastructure and other user; the user's business model and business plan; expected to be position and role of technology system construction in user traffic in; user business model of information technology, software application mode, related to the deployment environment, operating rules, management practices, etc.; product demand model, the technical system is defined as information technology business (functionality, performance, constraints) and deployed like; item or product technical framework; elements project, technical difficulties, the main embodiment disorders; the feasibility study item or product; selectable items embodiments, organization, resources and budget items (human, financial, material, time, etc.);; communication and coordination mechanisms such as the cost of the project / benefit analysis; ...... the contents of other project proposals may contain, or in a separate document lists the contents may include : project risk and impact assessment; the project schedule; project quality Planning; project transition funds obtained manner, financial planning; business model product or project, profit model are discussed; the findings of similar products or the company's market and competitive comparison; enterprise success stories, and other qualifications; commercial terms or suppliers / customer contracts
Feasibility study
The main contents of the feasibility study include economic viability, technical feasibility, legal feasibility, selecting five partial implementation feasibility and programs.
Cost-benefit analysis
The purpose of that benefit analysis of the project development cost targets and cash income and intangible benefits of the project can be a measure of specialized assessment. This assessment of economic returns for income, corporate governance was an important factor in decision-making approval of the project implementation.
Project may cost relates in part to the cost of the project,
Usually include: infrastructure spending: such as housing and facilities, office equipment, software platforms, software and other necessary tools acquisition cost;
One-time charges: such as research consulting fees, research fees, management fees, training fees, travel expenses, other one-time charges and so on;
Operation and maintenance costs: equipment such as rental and regular maintenance, regular consumables expenses, communication costs, staff salaries and bonuses, housing rent, public facilities maintenance and other recurring expenditure items.
Benefit analysis of a number of indicators and further analysis
Income / investment ratio: lifetime of the system after the software implementation of the project income / investment ratio;
Investment recovery period: the number of cumulative income begins to exceed the number of cumulative expenditures of time;
Sensitivity analysis: When analyzing the project some key factors such as the length of the system life cycle, the work load of the system, the type of workload, processing speed, equipment and software configuration change or other factors with a reasonable, and for expenses returns and most sensitive range estimate. Usually when the project requires trade-offs and adjustments between different factors need to refer to the contents of the sensitivity analysis.
Develop and improve programs
In the system program stage, the main work done is to explain the problem, "how the system realization".
1. Determine the software architecture
Using computational models JSP Web development process. JSP pages constitute the front end of the presentation layer, EJB constitute the business logic layer, JDBC (Java DataBase Connectivity, Java Database Connectivity) and back-end database constitutes a data services layer.