ISYS2391 SEM Assignment 2. Assignment 2 Database Development

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1 Assignment 2 Database Development Furnish4Us is an Australian based company, owned by the Furnish family that has been in business for 10 years, and intends to market their newly designed furniture. Each furniture item comes as a kitset, similar to Ikea. However, what makes their furniture easy to assemble is their patented locking systems that do not require Allen keys, Hex keys, bolts, screws, or nails. Furniture frames, bases, shelves, desks are made out of a specially created material similar to wood-plastic composites but are recyclable. They are also light and come in various different colours. Furnish4Us have 5 big superstores around Australia: Sydney, Melbourne, Brisbane, Hobart, Perth, and Adelaide. Although, overall retail sales has been lower compared to three years ago, sales and profits have been steady. The management of Furnish4Us have realised that the trend of Internet sales has increased in the retail industry and would like to explore the possibility of extending its website to Internet sales rather than just disseminating information and product catalogues. Marketing data has shown that competitors similar to Furnish4Us such as Office Green and FurnishWithUs have been able to increase their sales through Internet sales. Since the DSS prototype exercise Furnish4Us has another line of desks to add to their SX and ZX lines. Their combination (combo) computer desks CX (computer desks with shelving) are not compatible with the new locking system and therefore, are assembled differently. In addition, to their desk products, Furnish4Us products also include dining tables, shelving and cabinets, sofa-beds, and chairs. Raw material is kept in different locations than that of their finished products. Raw materials consists of material bought through other suppliers as well as core components made by Furnish4US. Raw materials are sourced mostly from suppliers in Australia and New Zealand but also include a few offshore trading partners, such as China, Vietnam, and Malaysia. In order to go online, Furnish4Us would like to first build a database to improve their stocking and ordering of raw material. Currently, their records are stored on an Excel spread-sheeting system. Talking to the owners and managers you have been given the following data/information requirements for their proposed database. Database Requirements: To track raw materials and assembled/manufactured products. To list raw materials that need replenishment. To generate output such as purchase orders (refer to Purchase Order PDF file), product catalogues, suppliers and their products, and a list of products and their assembled components, and sales reports. To keep track of authorisation of purchase orders. To break down the products into broad categories. To find out which orders have not yet been met or isolate potential problems with delivery or orders. They have had in the past problems with missing order details and delayed deliveries. The managers want to at least identify these types of problems from the database. Page 1 of 5

2 Additional Information Given: 1. You are given an Excel file Furnish4Us Sheets 2 Sem 2014.xlsx. 2. You are given a MS-Access file Furnish4Us Prototype 2 Sem 2014.accdb. 3. You are given a sample purchase order from Furnish4Us PO 2014.pdf. Assignment 2 PART A Entity Relational Diagram -ERD (10%) Group Work Task 1 (5%): 1. Take note of the requirements for the database above. This should help you work out the data required for the database and thus, entities and attributes required to build a prototype database. 2. Use the files given to you to work out the entities (tables), attributes (columns), and relationships that will satisfy Furnish4Us s database requirements. 3. Draw an ERD. You must use a drawing tool such as MS-Visio. Do not do this in MS-Access. 4. Your diagram will only entities that you will use for the database and must show the cardinality (1:1, 1:M, M:N) of the relationships between entities. 5. Your diagram needs to show consistency in ERD notation. Task 2 (5%): 6. From your ERD, which only highlights entities and may show any type of cardinality, draw up a relational diagram that will be used for your final database model. Again, do not use MS- Access but use a drawing tool. 7. Your diagram should include all attributes for each entity and should only show 1:M relationships. You may have merge 1:1 relationships and break down M:N relationships into two 1:M relationships. 8. Make sure all your primary keys and your foreign keys are also shown for each entity. Make sure the entities are connected correctly, joining primary keys to foreign keys. 9. Your diagram also needs to show consistency in diagram notation. Submission Procedure An electronic copy of both your ERD and Relational Diagram must be submitted by the due date (Thursday, 2nd October 11:59pm) via myrmit Studies (Blackboard). Submit your work to the same place as you did with your Assignment 1. When you submit online you must state your tutor s name, your workshop day and time, and your group name or group members (via a coversheet). Page 2 of 5

3 Assignment 2 PARTB Database Prototype MS-Access (20%) Individual Assignment Tasks: 1. Take note of the requirements for the database above. This should help you work out the objectives for the database and what type of output and information is required to be generated from your prototype database. 2. Create a new Prototype MS-Access database from what you worked out. 3. You want to recreate the relational diagram that you drew for Part A The following task can be performed as a group: 4. The importing and creating of tables to recreate your relational diagram in MS-Access can be performed by your group. Ensure you link each of your tables in MS-Access (in the relationship tool linking primary keys to foreign keys where appropriate) to at least one other table as shown in your relational diagram. However, this is the only task that you can work together if you wish. Once you have set up all the tables (excluding data) in MS-Access you need to make a copy of the database for each member. Then, as individuals complete the following tasks: The Following Tasks are to be carried out individually, not in your groups: 5. Make sure all your tables have been populated with data. Add at least 20 records for each of your tables where possible and appropriate. 6. All your tables will be checked for appropriate properties. From your data dictionary (metadata) that you have worked out put in appropriate auto-numbering, captions, formats, field sizes, input masks, validation rules, and other property values. The idea is to make the tables easy to maintain and to ensure input data is accurate and validated. 7. Build at least one data entry form. This form needs to have a sub-form in it. This means you want a form representing a one-to-many relationship. For example, have a form showing suppliers and the raw materials they supply. 8. Make sure all data entry forms have appropriate data validation. Be aware not all data validation created for the tables will transfer to the forms. Therefore, you may have to create data validation specifically for your forms. 9. Build a main menu/navigation form to help the user navigate through your database. You will create one menu form that will have buttons to link all your forms and reports that you have created. You need to work exactly what you want the user to access (whether its reports, and/or forms, and/or queries). In other words, what is useful for the user? 10. You will need to build 3 queries contributing to the purpose of the database (refer to the Database Requirements mentioned previously), by incorporating the following: a. There should be at least 1 dynamic query. Page 3 of 5

4 b. There should be a least 1 group by query. c. There should be a least 1 query showing a calculation. For example, total amount ordered. 11. Create a report for each query. That means there will be at least 3 reports. Assessment Grading Pass/Credit level To achieve this level of grade all the above 11 tasks have to be completed adequately. Distinction Level In addition to the requirements to achieve a Credit level you must: Create an additional query to update the stock quantity in raw materials with the amounts ordered. You need to make sure you have the necessary attributes and entities to do this. If you need to create extra tables and columns then do so. You will also need to populate this extra table if you have not done so already. Ensure all reports have a consistent and professional look. Add additional reports to help fulfil the Database Requirements where appropriate. Ensure that data validation in your forms include drop down boxes (combo boxes) for all attributes where appropriate. Create command buttons for all your forms so that when these are clicked your forms will close. Ensure that in all reports and forms include good aspects of usability. High Distinction In addition to the requirements to achieve a Distinction level students must: Create a query using statements, functions or structures not covered in the tutorial exercises or the lecture notes. Create a query that can identify and show a total cost of any orders that have not yet been fulfilled. Create the necessary tables and columns where needed. Again, if tables are not populated with data, populate them. Add any additional query or queries to fulfil the Database Requirements if they have not already been met. Ensure your database is user friendly and has a professional look and feel of a proper application. For example: Forms are easy to use and the user does not have to scroll up and down to get to data. All forms have navigation selectors and record selectors turned off where appropriate. The menu form loads up at the start. There is no Access ribbon, or icons from the quick access toolbar, or the Navigation Pane (where objects such as tables and queries are displayed). Page 4 of 5

5 All forms, reports, and/or queries can be accessed from the main menu, and once clicked appear in the fore ground as pop-up windows and can be moved. Ensure at least half of your queries created can be classified as complex queries (i.e features more than one table and not just merely filtering out data). Work out how to enhance one of your data entry forms using either macros or other means. For example, you might include a data validation feature that will display a message box if an invalid entry is made in one of your fields (Hint: create an embedded macro), or display a message for any order that has not been delivered. Submission Procedure 1. An electronic copy of your Database must be submitted by the due date (Thursday, 23 rd October - 11:59pm) via Blackboard (MyRMIT Studies). Submit your database in Blackboard. Do not use file exchange or TurnItin to do this. 2. You will submit two files. A coversheet and your database file. Page 5 of 5