$1.$ Office Information Systems $($OIS$)$ are almost taken for granted in the modern corporate workplace, yet they have a critical role in the management of an organisation.

a$)$ Describe, with examples, THREE key functions of an Office Information System.

b$)$ For ONE of these functions, discuss the criteria which must be met in order for it to be successful.

You should state any assumptions that you make.

$2.$ With the aid of relevant examples, evaluate the current impact and potential impact of social media on the provision of MIS.

$3.$ a$)$ State and justify THREE characteristics of information.

b$)$ With the aid of suitable illustrative examples, discuss the extent to which rule based Expert Systems $($ESs$)$ can support the Human Resources $($HR$)$ function of an organisation. Include an overview of a rule$-$based ES within your answer.