Database+Coursework Database 101

Area Film and Literary Society (MLFS) give up groups and events for local people. All participants must be members (who pay an annual fee) or their guests who may attend events. Fees deviate from cardinal group to another. In addition members may have a reduction in fees depending on their fiber of membership. For lesson Individual members pay 100% fees and Concessionary members pay 50%. There ar in addition Household members and a special category called Friends of the Society. The Society hosts a number of groups which meet monthly.Members can junction one or more groups currently these include Film, Science, Reading and Poetry Groups. A paper study is held for to each one member, an example of which is given below. Member detail Event talents Member No1022 NameJay PatelTelephone020 8888 3333AddressHigh Rd, London Member type Individual Ability Code Talent 01 Poetry 05 Science membership records Session ( division) Group grave Group name CoordNo CoordName Feepaid D ate paid 2007-2008 01 Poetry 102 carol Duffy ? 0 19/09/07 2008-2009 01 Poetry 102 Carol Duffy ? 60 02/09/08 2008-2009 06 Reading 111 Jane Austen ? 75 03/09/08 2009-2010 05 Science 181 Marie Curie ? 90 03/09/09 * * * * * * * occupation that the group code and the readiness code are both based on the same domain of values. The latter represents members talents which the Society may make use of this is described later. One group of a particular type (such as Poetry) depart be run each year, assuming there are nine or more members who indispensableness to join a group.Each group is run by a coordinator, who may change from one year to the next. In addition to the higher up, the society holds the address and forebode number of each coordinator. Besides groups, the society to a fault holds one-off special events, such as lectures, films, art exhibitions and musical evenings. Events do not relate to particular groups they are open to all members and their guests and are organised by one of the coordinators. Events will be led by an outside verbaliser, or sometimes a member (who have special talents as shown in the example record above) will act as the spill the beanser.Each event will have only one speaker (whether an outside speaker or a member speaker), but a speaker may speak at a number of events. Details will be held of the event name, the date, and venue and outside speakers (name and telephone number). The Society will keep records of members who attended events and the number of guests for each member per event. 1a) Entity-relationship imitate mapped to a relative database If you need to revise this topic, see Text Book Chapter 3. Produce an Entity-Relationship Model using UML notation for the above case.Convert to a relational model by specifying the primary and contrary keys, mapping each one-to-one relationships into relations, and decomposing any many-to-many relationships. This is the Relation diagram and the diagram which you s hould submit. Note that there is no need to include the type of each attribute. State any assumptions that you may need to make particularly about optional and mandatory relationships. Note that assumptions are about how you have interpreted the scenario, not about the E-R modelling process. The ERD is not trivial it involves at least 10 entities.I suggest you start by each member of your group concentrating on diverse parts of the ERD and then coming together to discuss. Remember * databases hold historical information, not just details of current records * to work out cardinality of relationship use two sentences each starting with the word one * check all attributes they should be atomic (single-valued) * check primary/foreign key links (remember the foreign key goes on the many side) * decompose any mn relationships 1b) substantiate the model Checking for connection trapsExamine your model and identify one potential trap (fan trap or chasm trap) if present. Consider whether this may cause a problem to your model and re-draw if necessary, arguing your case either way. Supporting the functional requirements Validate the model to check it can support the following functional requirement i. e. specify the access data track by listing the appropriate relations (taking into account the correct relationships) from your diagram List all members by name who have ever belonged to the Science group, who have a talent for music and have attended an event with Goldie as the outside speaker.