There are three basic groups of WLC (whole life-cycle costing) models:
- Decision support models
- Simulation models: Life cycle cost is an essential approach to decide on alternative rehabilitation strategies for infrastructure systems. Monte Carlo simulation approach is used to develop a stochastic life cycle cost (SLCC) model and methodology in order to compare different rehabilitation scenarios/alternatives for infrastructures, such as water mains. This method assumes that some inputs are randomly variable in a range of values.
- Optimisation models

Value Engineering (VE) is concerned with new products. It is applied during product development. The focus is on reducing costs, improving function or both, by way of teamwork-based product evaluation and analysis.
This takes place before any capital is invested in tooling, plant or equipment.
This is very significant, because according to many reports, up to 80% of a product's costs (throughout the rest of its life-cycle), are locked in at the design development stage. This is under-standable when you consider the design of any product determines many factors, such as tooling, plant and equipment, labour and skills, training costs, materials, shipping, installation, maintenance, as well as decommissioning and recycle costs.
LO 3, AC 3.4

Risks like natural disasters - fire, flood, or weather-related event, and cyber-attacks can disrupt the supply chain seriously. Threats and disruptions mean a loss of revenue and higher costs, which leads to a drop in profitability. And businesses can't rely on insurance alone because it doesn't cover all the costs and the customers who move to the competition. Risks must be identified early and supplier should have a plan that ensures continuous operations during disasters.
There are several steps many companies must follow to develop a solid business continuity plan. They include:
- Business Impact Analysis: Here, the business will identify functions and related resources that are time- sensitive. (More on this below.)
- Recovery: In this portion, the business must identify and implement steps to recover critical business functions.
- Organization: A continuity team must be created. This team will devise a plan to manage the disruption.
- Training: The continuity team must be trained and tested. Members of the team should also complete exercises that go over the plan and strategies.

The aim of this question is to check students' understanding of different types of data. There are 2 types of data:
- Primary data is the collection of original or raw data which are generated from field research. In this case, only RFI and surveys from customers are considered as primary data.
- On the other hand, secondary data is public information that has been collected by others. It is typically free or inexpensive to obtain and can act as a strong foundation to any research project - provided you know where to find it and how to judge its worth and relevance. Examples of secondary data are government statistics, industry associations, trade publications, published market reports, etc.
Reference:
LO 1, AC 1.2