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Online Music Store MSE Project Presentation III Presented by: Reshma Sawant Major Professor: Dr. Daniel Andresen 03/11/08

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Online Music Store MSE Project Presentation III Presented by: Reshma Sawant Major Professor: Dr. Daniel Andresen 03/11/08 Phase III Presentation Outline Project Overview Brief Review of Phases Action Items from Phase II Implementation/Demo Assessment Evaluation Project Evaluation

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slide1

Online Music StoreMSE Project Presentation IIIPresented by: Reshma Sawant Major Professor: Dr. Daniel Andresen 03/11/08

phase iii presentation outline
Phase III Presentation Outline
  • Project Overview
  • Brief Review of Phases
  • Action Items from Phase II
  • Implementation/Demo
  • Assessment Evaluation
  • Project Evaluation
  • Lessons learned
project overview
Project Overview

The objective of this project is to design and develop an Online Music Store.

  • Target: Public Users
  • Product: Media for Music
  • User Types: User, Administrator
  • Functionalities for Users: Browsing, searching, buying products, getting song recommendations, managing personal account
  • Functionalities for Administrator: Manage Catalog Details, Manage Orders, Manage Shopping Cart
review of phases
Review of Phases
  • Phase I:
    • Requirement Specifications
  • Phase II:
    • Designed Web Pages
    • Created Test Plan
  • Phase III (Current):
    • Coding
    • Testing and Analysis
action items from phase ii
Action Items from Phase II
  • Correct multiplicities in Class Diagram
    • Multiplicity between ShoppingCart Class and CartItem Class should be 1..*
action items from phase ii7
Action Items from Phase II

2) Revise SLOC count and Project Duration

  • Included in Project Evaluation
implementation demo
Implementation & Demo
  • Technologies Used:
    • IDE – Microsoft Visual Studio 2005
    • Technology - ASP.NET 2.0
    • Language – C#
    • Database – SQL Server 2005
assessment evaluation
Assessment Evaluation
  • Manual Testing - To ensure the correctness of various parts of code
assessment evaluation10
Assessment Evaluation
  • E.g. Register Web Page for User
  • E.g. Edit Shopping Cart
assessment evaluation11
Assessment Evaluation
  • Performance Testing
  • Goal:
    • Determine load in terms of concurrent users and requests
    • Determine Response Time – time between the request being initiated for a Web Page to time taken for it to be completely displayed on a user’s browser
    • Tool Used – JMeter(http://jakarta.apache.org)
    • Inputs to JMeter:
      • Number of Users
      • Ramp-up period – time (sec) to load the full number of users chosen
      • Loop Count - how many times to repeat the test
        • E.g. Users = 10, Loop-Count = 20, Ramp-up period = 5 sec

=> 10 Users will be loaded in 5 sec with total requests = 200 (10*20)

assessment evaluation performance testing factors
Assessment EvaluationPerformance Testing Factors
  • Load Type
      • Peak Load – maximum number of users and requests loaded in short duration (e.g. 5 sec).
      • Sustained Load – maximum users and requests loaded for longer period (e.g. 5 mins).
    • Connection
        • Wireless Connection at 54.0 Mbps
        • LANConnection at 100.0 Mbps
  • Web pages Tested
      • HTML Page (Login Web Page)
      • Database Intensive Page (Home Page)
      • Business Logic Page (Shopping Cart Page)
assessment evaluation performance testing environmental set up
Assessment EvaluationPerformance Testing Environmental Set-up
  • Machine Configuration
  • Operating System – Windows XP Professional
  • Memory – 1GB RAM
  • 100GB HardDisk
  • Intel Pentium M Processor 1.7 GHz
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Assessment Evaluation

Home Page [http://localhost:2416/CDShop/Default.aspx]

  • Peak Load at Wireless (54 Mbps) vs. LANConnection (100 Mbps)
  • Note
    • Loop-Count constant at 20,000
    • Ramp-up period of 5 sec
    • Users – 200, 600, 800, 1000
    • Observations
    • Response Time increases linearly with number of users for both Wireless and LAN
    • Max no.of users handled by the system before it becomes saturated = 1000
    • Response Time is less for LAN due to better bandwidth.
slide15

Assessment Evaluation

Home Page [http://localhost:2416/CDShop/Default.aspx]

  • Constant Users vs. Constant Loop-Count for Wireless Connection

Users Constant at 200 Loop-Count Constant at 20,000

Loop-Count increased up to 20000 Users – 200, 600, 800, 1000

slide16

Assessment Evaluation

Home Page [http://localhost:2416/CDShop/Default.aspx]

  • Observations
    • Response Time increases rapidly with number of users but not very much when the users are kept constant and only loop-count is increased.
    • Reason:
      • If the number of users is kept constant and only the loop-count is increased, the number of requests/sec handled by the server remains constant for every increase in the loop count.
      • If the users are increased and loop count is kept constant, the requests/sec handled by the server increases with increasing users, but the number of executions remain constant and hence the longer response time.
assessment evaluation17
Assessment Evaluation
  • Note
    • Loop-Count constant at 20,000
    • Ramp-up period of 5 sec
    • Users – 200, 600, 800, 1000
    • Observations
    • Response Time increases more for Home Page as compared to Login and Shopping Cart Page
    • Lowest Response Time for Login Page as no database requests are submitted by the user
    • Moderate Response Time for Shopping Cart page because there are more computations
    • Response Time for Shopping Cart Page is approx. 28% more on an average than for Login Page
    • Response Time for Home Page is approx. 246% more on an average than for Login Page
  • Comparison of Response Times of all 3 WebPages at Wireless Connection of 54.0Mbps
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Assessment Evaluation

Home Page [http://localhost:2416/CDShop/Default.aspx]

  • External Factors affecting Response Time
    • Varying Network Bandwidth
    • Limited System Hardware Resources (CPU, RAM, Disks) and Configuration
    • JMeter Tests and Server running on the same machine
slide19

Assessment Evaluation

Summary

  • For Peak Load
    • Users – 200, 600, 800, 1000
    • Loop-Count constant at 20,000
    • Ramp-up period = 5 sec
    • Response Time increases rapidly with number of users but not very much when the users are kept constant and only loop-count is increased.
    • Response Time is highest for Home page, Intermediate for Shopping Cart Page and Lowest for Login Page
slide20

Assessment Evaluation

Login Page [http://localhost:2416/CDShop/Login.aspx]

  • For Sustained Load at Wireless Connection
project evaluation
Project Evaluation
  • Project Duration (actual)
    • Phase I = 86 hours
    • Phase II = 140.5 hours
    • Phase III = 304.5 hours
  • Total = 531 hours
  • Project Duration (in Months)
  • Estimated at the end of Phase II = 6.5 Months
  • Actual = 7.5 Months
project evaluation22
Project Evaluation
  • Category BreakDown
    • Research = 38.5 hours
    • Design = 37 hours
    • Coding = 305.5 hours
    • Testing = 32 hours
    • Documentation = 118 hours
  • Total = 531 hours
project evaluation23
Project Evaluation
  • SLOC Count (Actual) – LocMetrics Tool (http://www.locmetrics.com)
    • C# Code (Including C# auto-generated code) = 2757
    • SQL Code = 540
    • XML Code = 86
    • CSS Code = 412
    • Total = 3795
    • SLOC Count (Estimated)
    • At the end of Phase II – 3200 (Based on prototype design in phase I)
slide24

Project Experience

  • Lessons Learned:
    • New technology
    • Use of various tools for designing and testing – Visual Studio 2005, JMeter, LocMetrics
    • Working with UML and Class Diagrams
    • Entire life cycle of the project– requirement gathering, Design, Coding, Testing and Documentation
    • Testing applications at different levels
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