Java代写 | Small team project Software Workshop

本次Java代写是实现一个聊天系统

Small team project
Software Workshop (MSc CS & ICY)
Mart´ın Escard´o and Uday Reddy
Assigned: 19 February, 2020
Team work. The teams will be allocated in your tutor group. Talk to your tutor in case
of questions.
You can develop a project of your choice, subject to the approval of your tutor, but it must
include the above technologies. Alternatively, you can develop one of the projects proposed
in Section 1.
Contents
1 Sample projects 2
1.1 Genealogy server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Client-Server Messenger Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Other project ideas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Deliverables 5
3 Team organization 5
4 Project vivas 6
5 Marking scheme 6
6 Project calendar 7
1
1 Sample projects
We describe here two sample projects in detail: a genealogy server and a chat server.
1.1 Genealogy server
Design and implement (1) a genealogy tree server using a database to store the tree, and (2)
a genealogy tree client that allows users to see and input information.
Architecture of your system.
1. A database.
2. A server (only one copy running at a given time).
3. A client (many copies running at a given time, in different machines).
The server communicates with the database, and each client communicates with the server:
database
^ |
| |
| v
server
^ |
| |
| v
client1 client2 client3 client4 client5 …
1. The server will use threads in order to be able to attend concurrent requests by several
clients, and synchonization to properly deal with them.
http://java.sun.com/docs/books/tutorial/essential/concurrency/procthread.html
2. Communication between the server and the clients will be based on sockets.
http://java.sun.com/docs/books/tutorial/networking/sockets/
3. Communication between the server and the database will be based on JDBC and the
School’s PostgreSQL database server.
http://java.sun.com/docs/books/tutorial/jdbc/
http://supportweb.cs.bham.ac.uk/information/projects.php
4. The client user interface may be based on JavaFX or Swing, and you may use Model
classes such as ListModel.
http://java.sun.com/docs/books/tutorial/uiswing/
http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/ListModel.html
2
Specification of the client. The user should be able to:
1. Search for a person, and find the following information about that person:
(a) Name.
(b) Place of birth, date of birth.
(c) Place of death, date of death (if applicable).
(d) Biography (may not be present).
(e) Parents (one or both may be unknown).
(f) Children.
2. Navigate by clicking at parents or children.
3. Add, remove, update people.
4. Add and remove parents to a person.
5. Add and remove children to a person.
This is very similar to the Mathematical Genealogy project
http://genealogy.math.ndsu.nodak.edu/
The main difference is that your application is not going to be web based — rather than a
browser, you will have the client communicating with the server. Another difference is that
there is no system administrator for this, so that any request to update the database will be
simply accepted, immediately.
The client user interface.
1. When the client starts, you are presented with a page that allows the user to enter
details for a person. This person will be searched for. There can be zero or more people
matching the given details. At this point, you can either click at one of those people,
to see their page, or add a person with the same given details.
2. Once you are in a person’s page, you can delete the person, update the details, add or
remove children, or add or remove a parent, or go back to the search page.
Server. The server should support the functionality required by the client. It is part of the
project to design the server.
Database. You also have to design the database, based on what is required in the client.
3
1.2 Client-Server Messenger Project
Design and implement a simple messenger program that allows users to login, chat to other
users and access previous chat histories.
Architecture
1. Database (optional way to store chat histories)
2. Server (only one copy running at given time)
3. Client (many copies running across different machines)
Specification The user should be able to:
1. Login to the server using a username and password.
2. Create a new account.
3. View the list of other users who are currently online.
4. Initiate chat with any user who is online.
5. Engage in multiple chats with different users
6. (optional) Allow group chats and inviting of other users to join a chat. One person
leaving the group chat should end the entire chat.
7. (optional) Allow a user to view previous chats of which they have been a part of, and
searching for specific phrases or other search keys.
Client interface When started, the client should present the user with the ability to log
on to the server or create a new account with the server. If the server cannot be found then
the client should gracefully inform the user of this problem.
Once logged in, the user should be able to view the list of all other users that are online
and start a chat with any user. While engaged in one chat, the user should be able to start
new chat sessions either initiated by himself/herself or by other users wishing to chat with
him/her. The exact design of this part of the interface is left up to the team.
To get the highest marks users will need to be able to access the histories of previous chat
sessions of the users and should also be able to engage in group chats by inviting users to join
a current chat.
Miscellaneous The exact design of the server, the protocol for communication between the
server and the client, and any database (should you deem one necessary) is to be decided by
you as a team. But it should accommodate all the above requirements.
1.3 Other project ideas
Some other ideas you might consider for your project topic include web shops, banks, estate
agents, travel agents, calendar server, games. Whatever topic you choose, you must make sure
that it involves client-server interaction, graphical user interfaces, and some use of threads.
4
2 Deliverables
You must use git server for managing the various files shared among team members. We
will be giving you accounts on the School’s git server that you can use for this purpose. You
must use your own svn login to commit your own work at least once a week but possibly more
often so that there is a record of your work.
1. Project report. Electronic, and three printed copies. It should contain a brief description
of your system (1-2 pages) and the design and project documentation as listed below
(normally 10-15 pages).
(a) System design.
i. Whole system, including communication protocols.
ii. Database.
iii. Server.
iv. Client.
(b) A test plan (document, including results of the test) and implementation (program).
This is mandatory for projects with MSc students, but optional for ICY
students.
(c) Evaluation.
(d) Bibliographic references.
(e) Team organization report, including tasks allocated to individuals and subteams.
(f) Project diary, including agendas minutes of meetings.
(g) A statement of contribution of each team member, signed by all the team members.
(h) Anything else you are required to in tutorials by your tutor.
2. Working system implementation (submitted into the git repository).
3. A reasonably large, populated database (likely to be constructed semi-automatically)
for testing and assessment purposes.
4. A powerpoint-style presentation (preferably in pdf), to be delivered by the team at the
assessment presentation.
3 Team organization
1. Each team will need to elect a secretary, who will be responsible for organizing meetings.
It is acceptable rotate the role of secretary among members, but this is not necessary.
Somebody must take minutes for each meeting, which will be included as an appendix
to the report.
2. The meeting minutes should indicate the time and date of each meeting, all the members
that attended the meeting, what decisions were taken or work agreed upon, and the
progress against the work agreed in the previous meetings. The work that has been
carried out should be uploaded to the git server around the time of each meeting.
5
3. We also need a team member to be allocated as a point of contact with the tutors and
lecturer so we can easily communicate with the whole team. This shouldn’t change, if
possible, for the whole duration of the project. (This could be secretary mentioned in
the first item, but could be some one else, e.g., a team leader.)
4. The team members will negotiate among themselves the allocation of the various learning,
design, implementation and documentation tasks. But notice that all team members
have to write non-trivial, substantial Java code in order to get a pass mark, and
we need a list of contributions to be included in the report.
5. There should be fallback plans for substituting or replacing people, among the existing
people in the team, in case of unforeseen circumstances such as prolonged illness. So no
important subtask should be under the control of only one team member.
6. As in real life industry projects, there are likely to be issues with working in a small
team. How well or poorly you deal with these issues will be assessed under quality of
management (see below).
4 Project vivas
The project will be evaluated as follows:
1. A viva will take place in a meeting room with three lab machines and a data projector
available.
2. You should prepare a presenentation covering the project topic, the architecture of the
system, team organization, the design of the individual subsystems, and the testing
methods used. The presentation should last about 10 minutes.
3. A member of the team will introduce the project and team organization.
4. It is not necessary for every team member to speak during the presentation.
5. Then the whole group will demonstrate the system and answer questions.
6. The entire viva will take about 20 min.
7. The team tutor and another tutor, and a lecturer will attend the viva, and will have
read the report before that.
8. The project will be marked independently by the tutor and the second tutor. If the
marks are both in the same degree classification, the average will be taken. Otherwise
the lecturer will play the role of moderator and a mark will be agreed after discussion.


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