19-05-2012, 03:00 PM
Aircraft Management
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INTRODUCTION OF PROJECT
As India rapidly moving toward evolution of mechanism, So as to meet the basic necessity we needs to travel from one place to another & only by air we can reach the required place/destination as early as possible.
So aircraft management that is airport management should be developed to meet the 21st century. Therefore, we should design our airport with well equipped technology. It will ease our transportation. By the help of this ‘Airways system’ software we can do all works as fast as we required.
Features of Visual Basic:
Visual Basic is a flexible, high level, structured programming language.
Visual Basic includes certain low level features that are normally available only in assembly or machine language.
Visual Basic is widely available, commercial interpreter are available for most personal computer, mini computers and main frames. Visual Basic is largely machined independent. Programs written in visual basic are easily ported from one computer to another.
Your programs interface may include the familiar controls that window users already know how to operate-such as command buttons, option list, text boxes and scroll bars.
Programming Maintenance
Apart from the bugs, the programmer has to maintain the program he /she has created. Program Maintainance is a term used for the updating of a program after the program after the program is put into use. This updating may be a result of the users request or a change in the way the program needs to operate.
•Project
A project is a collection of files that make up your application. A single Application might consist of several files and the projects is the collection of those files.
•Multiple Documents Interface (MDI)
It allows the application to contain multiple documents windows. In effect, this interface lets your work with several sets of data in multiple window within the program. Each document window is called a child window.
• Single Document Interface (SDI)
It limits the application take on a window Explorer- like interface with topic summaries in the left window an details for a selected topic in the right pane.
Role of system analyst:
System analysis is central to the whole of system development. It includes gathering the necessary data and developing plans for new system. This is not an easy task because many people need to be satisfied and many conflicts resolved.
The system analyst is the person who guides the analysis, design and implementation and maintenance of a given system. In performing these four tasks, the analyst must always match the information system objectives with the goals of organization.
Change agent:
The analyst is called as change agent because sometimes he changes the entire policy of industry or organization to improve overall working as well as profit of the organization. The change is brought implementing new software based computer system. In order to make this change successful the analyst should give user as much participation as possible while designing the system.
Investigator and monitor:
The analyst finds out why user is not satisfied with the not present system he is using. What are the drawbacks of pitfall in the present system, that user wants to remove by replacing it with new system.
The analyst also monitors the activities going on while designing a new system. The activities to be monitored include successful completion of programs with respect to time, cost and quality.
Architect:
System analysts are like architects. He must work with user to identify the goals and shapes of new system. Architect first prepares a plan and according to that plan he develops a building. A system analyst also creates several plans and develops or builds system according to that plan.
Psychologist:
Analyst plans the role of psychologist in the way he/she reaches people interprets their behavior and draws conclusion from their interactions.
Sales person:
The analyst works as a sales person by giving oral presentation of the system at each stage of development. The analyst should be very good in communication and in putting his ideas before the user. Also he should be able to clarify the issues raised by the user at the time of presentation.
Motivator:
The analyst work as a motivator after the system is implemented. It is the responsibility of the analyst to motivate the users to use the new system. it is directly dependent how much user participation is given in the project design and how much efforts are taken to train the user, that the user can be motivated to use the new system.
Politician:
A politician should be a good diplomat, should have proper good control on his party members and should have good influence on the people. It is true for becoming a successful system analyst. While designing a new system, the analyst should not only think about the technical side but also keeping good relations, good control and good influences on the people with and around him.
Steps in feasibility analysis:
1. Form a project team and appoint a project leader:
The concept behind the project team is that future system users should be involved in its design and implementation. Their knowledge and experience in the operation area are essential to the success of the system. For small projects, the analyst and an assistant usually suffice; however, more complex studies require a project team. The team consists of analysis and user staff-enough collective expertise to devise a solution to the problem. Even many times, an outside consultant and an information specialist join the team until the job is completed. Projects are planned to occupy a specific time period, ranging from several weeks to months. The senior system analyst is appointed as project leader.
2. Prepare system flowcharts:
Information oriented charts and dataflow diagrams prepared in the initial investigation are reviewed at this time. The charts bring up the importance of the input, output and dataflow among key points in the existing system. All other flowcharts needed for detailed evaluation are completed at this point.
3. Enumerate potential candidate systems:
This step identifies the candidate system that are capable of producing the outputs included in the generalized flowcharts. This requires a transformation from logical to physical system models. Another aspect of this step is consideration of the hardware that can handle total system requirements.
4. Describe and identify characteristics of candidate system:
From the candidate systems considered, the team begins a preliminary evaluation in an attempt to reduce them to a manageable number. The information along with additional data available through the vendor highlights the positive and negative features of the system. The constraints unique to each system are also specified.
5. Determine and evaluate performance and cost-effectiveness of each candidate system:
Each candidate system’s performance is evaluated against the system performance requirements set prior to the feasibility study. Whatever the Criteria, there has to be as close a match as practicable, although trade-off are often necessary to select the best system.
The cost encompasses both designing and installing the system. It includes user training, updating the physical facilities & documenting. System Performance criteria are evaluated against the cost of each system to determine which system is likely to be the most cost effective and also meets the performance requirements. Cost are most easily determine when the receipts if the systems are tangible and measurable. An additional factor to consider is the cost of the study design and -requirements.
6. Weight system performance and cost data:
In this step each candidate system is weighted by its performance and cost data by applying a rating figure. Then the candidate system with the highest total score is selected.
The procedure for weighing candidate system is simple:
(a) Assign a weighing factor to each evaluation criterion based on the criteria’s effect on the success of the system.
(b) Assign a quantitative rating to each criterion qualitative rating.
7. Select the best candidate system:
The system with the highest total score is judged the best system. This assumes the weighing factors are fair and rating of each evaluating criteria is accurate.
Most feasibility study select from more candidate systems. The criteria chosen and the constraints are also more complex. In any case, management cooperation and comments, however, are encouraged.
8. Feasibility report:
The feasibility report is a formal document for management use, brief enough and sufficiently non-technical to be understandable, yet detailed enough to provide the basic for system design. There is no standard format for preparing feasibility reports. Analyst usually decide on a format that suits the particular user and the system.