Kerala GOVT SSLC Exam Result 2009

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SSLC RESULT

JAD-Joined Application Development

Joined Application Development (Structured Approach)

Definition
It is defined as the structured approach in which users,managers,and analyst work together for several dayas in a seriees of intensive meetings to specify or review system requirements.

Participants in a JAD

JAD session leader :
The JAD leader organises and the runs the JAD.
This person is trained in group management and facilitation as well as system analyst.
The JAD leader set the agenda and sees that it is met.
The JAD leader remains nutral on issues and doesn't contribute idea or opiniion but rather than concentrates on keeping the groups on agenta, resolving conflict and disagreements.

Users:

Prototype

Prototype Design Approach

What is a Prototype ?
Prototype is a model of the original system. It is a scale down but functional version of the desired system. A prototype is a working system that is developed to test the ideas and assumptions about the new system. It consist of the working software that accepts input , perform calculations , produces printed or displayed information or perform other meaning full activities. Customer evaluate on this prototype and changes will be reported.

What are it's advantages & dis-advantages ?
Advantages

• Customer Can evaluate and can suggest changes before the original design.
• Sometimes the prototype can be evolve into the product to build.
• The prototype can be easily developed using fourth generation languages and with the help of CASE tools.

Disadvantages

• Prototype will not include error checking , input data validation, security.
• It will not offer user help .
• Need to redesign
  

What are the steps for the prototype design ?

• Identify the user's known information requirements and features needed in the system.
• Develop a working prototype.
• Revise the prototype based on feedback received from customer.
• Repeat these steps as needed to achive a satisfactory system.

Introduction to SAD

FUNDAMENTALS OF SYSTEM

System & It's characteristics , look at it's definition each and every word is well meaning and the characteristics can be derived from definition.

What is a system ?
System can be defined as orderly grouping of independent components linked together according to a plan to achieve a specific goal.
Each component is a part of total system and it has to do it's own share of work for the system to achieve the desired goal.

What are the characteristics of system ?

• Organization : Implies structure and order . It is an arrangement of components to achive objectives.
• Interaction : Refers to the procedure in which each component functions with other components of the system.
• Interdependence : One component of the system depend on other component of the system.
• Integration : It concerned with how the system tiged together . It mens a part of system is work together with the system even though each part perform a unique function.
• Central Objective : The central objective must be known well in advance.
  

What are the classifications of system ?
System may be classified in to 4 depending on it's nature

• Formal or Informal System : Formal system is planned in advance and is used according to schedule.eg: Conducting a scheduled meeting at end of every month.Informal System is word on as need basis ,not accoording to a schedule and not described by procedures. eg :Sales order processing through telephonic calls.
• Physical or Abstract System :Physical Systems are tangiable entities that may be static or dynamic .eg: computer system, vehicle, building etc..
• Open or Closed System :Open System is a system within it's envirnment .it receive input from environment and provide output to environment. Eg: Any real life system , Infromation system ,Organisation etc..Closed System is isolated from enviromnent influences.It operate on facts with in the system itself . It include a feedback loop, a control element & feedback performance standard.
• Manual or Automated System : Manual Systrem which requires human interaction. eg: face to face information center at places like railway station. Automated System which doesn't requires human interaction all automatic. eg: Trafic control system.

MCS-014 Question Papers

MCS-014
System Analysis And Design


December, 2007

• Define SRS. What are basic issues that the SRS writer should address?.
• Write the importance of feasibility study. Describe different type of feasibility reports.
• List principles of system design. Also, differentiate between Top-Down and Bottom-Up design with the help of a suitable example.
• Why is joined application development (JAD) used. Expain the different participants in JAD. Also Write the benefit of JAD.
  
• Differentiate between Decision Support System(DSS) and Expert System. Also, write the main characteristics of both.
• What are the important disadvantages f CASE tools ? Explain, how CASE tools are used in reverse and forward engineering.
• Explain required steps taken by software development team at the time of delivery of software?.
• Design the detailed process modeling and data modeling diagrams for employee information system. Make necessary assumptions.
• "inaccurate, incomplete, out of date, or missing documentation is a major contributor to poor software quality. " Justify the statement: Also,explain, how software maturity model (CMM) contributes in the quality of a software.
• Define process, procedure and process specification tools. Make the decision table equivalent to the following structured English notation :
  If balance <= 0 then{issue exception note} else if balance in account <>
• Draw E - R diagram for statement written below :
  "The LG company is organized into departments. Each department has a particular employee who manages the department. A department may have several locations. A department controls a number of projects. Each project has a single location. An employee is assigned to one department but may work on several projects. Every employee has a direct supervisor.
• Explain the important tasks performed by a Systems Analyst.
• Write the importance of testing in software development. Explain the important contents of Test Design Document.
  

June, 2007

• Prepare a SRS ' for a "Railway Reservation System". Design the DFD for the context level, first level and second level for the system. Follow the rules/conventions given in your study material to draw the DFDs.
• What is the significance of the prototype approach ? Mention the steps for the prototype
  design with the help of the flow diagram. Also, list the advantages and disadvantages of this approach.
• "The design principles are meant to effectively handle the complexity f the process of design". List and explain all the design principles. Also, explain the top-down design approach with the help of "an inventory system" design.
• Describe the aims of the following testing techniques :
  (i) Stress testing
  (ii) Performance testing
  (iii) Response testing
  (iv) Recovery testing
  (v) Security testing.
• What are the various components associated in a Entity-Relationship diagram ? List the various symbols used and their purpose of use. Also, draw an ERD for a "Pay slip generation" application. Assumptions can be made wherever necessary.
• Define an Expert system. Mention the basic characteristics f the expert systems.Also describe various components of them.
• What are CASE tools ? List the broad classification of various types of CASE tools and their usage.
• Define Systems Audit. List the objectives of it.Discuss the issues involved in Transaction, Security and Application audits.
• Elaborate the role of the Systems Analyst in the overall system development. Also, discuss the inter-personal skills that s/he should possess.
• Why are software documentation standards followed in any organization ? Explain any three documentation standards, mentioning their high-points.
• Explain the following :
  (i) Cost-Benefit Analysis
  (ii) Data Coupling
  (iii) Criteria for the form design
  (iv) Sequence diagrams
  

December, 2006

• Explain the phases of SDLC in detail. Also explain the role of feasibility analysis with an example.
• Prepare ERD for a library management system. Also explain the details related to keys, fields, relationships etc.
• List and explain the basic skills of a system analyst.
• Explain all types of coupling and cohesion in detail.Which type of coupling and cohesion is best ? Justify your answer.
• Build a context and first level DFD for a student registration system of a college.
• Give various types of documentation required in system development. Explain in detail with the help of suitable examples.
  
• Explain the following terms with an example :(i) System Testing (ii) Structure Chart (iii) Inheritance Diagram
• Explain the following with the help of an example : (i) Primary key (ii) Secondary key (iii) Referential integrity
  
• Prepare a database schema for a hospital managements system and elaborate its components.
• Explain the role of a DBA.
• List and explain various components of a CASE tool. Draw suitable diagram to elaborate your answer.
• List any four basic requirements for designing a project report.
• Explain the use and function of the following with suitable diagram for each :(i) TPS(ii) Expert system (iii) DSS .
• Explain any four types of testing techniques with an example of each.
• Explain the differences between reverse and forward engineering.Give a suitable example for each.
• Explain how the inference engine provides the reasoning capability to the expert system.

June, 2006 Question Paper

• What is a System ? List the various types of systems and explain each of them in detail.
• Explain the role of a system analyst in software development.
• Differentiate between the following :
  (i) Coupling and Cohesion
  (ii) Decision tree and Decision table
  (iii) Alpha Testing and Beta Testing
  (iv) Forward Engineering and Reverse Engineering.
• Consider the following situation :
  A bank offers two types of savings accounts, Type A and Type B. For the Type A account, the bank pays a dividend on the account balance at the end of each quarter. The balance can be insured. The insured amount gets 8'750/o annual interest. The uninsured amount gets 5'00o/oa annuli interest. For the Type B account, dividends are paid monthly
  on an average daily balance for that month. No dividend is paid for a balance below Rs. 2,000,/-, otherwise 5% interest is paid on the first Rs. 5,000/-, 5'5%o on the next Rs. 20,000/- and 7o/o over Rs. 25,000,/-. Draw a decision table and a decision tree for this situation. What is a feasibility study ? Why is it important for system design ? How does cost benefit analysis contribute in it ? Define logical design of a system. How is it performed ? Describe the relationship between data mining and logical design. Also, describe a tool for data mining.
• What is a CASE tool ? How are CASE tools important for an organization ? List the advantages and disadvantages of CASE tools.
• What is the importance of studying the maintenance of a system ? Explain the various types of system maintenance in SDLC.
• Explain information security architecture, with the help of a suitable diagram.
• What are the risks and threats involved in a system security ? Also, briefly describe 3 risks and 3 threats.
• What are the methods for gathering the user requirement? What problemsa re encountered hen using these methods ?.
• Explain five components required to construct a DFD.
• Construct the zero level and first level DFDs for the problem of "on line examination".
• Explain four reasons for the need of documentation of a system.