# Concept Justification of Future 3 DPVS and Novel Approach towards its Conceptual Development
## 3 Conceptual Design Approach for 3 DPVS
### Establishing Conceptual Design Process for 3 DPVS
#### Concept Generation and Innovation  
This stage is the second stage in the conceptual design, and it plays the most significant role for the entire 3 DPVS development. Generating a set of alternative concepts for 3 DPVS is its purpose, and the 3 DPVS innovation roadmap, methodology or algorithm will be utilized in this stage. The requirements and specifications output from the initiation stage are the input of this stage. Four steps could be involved in concept generation. _Step 1: Model of Problem Creation, to Identify the Attributes and Parameters of 3 DPVS_  
The first step is to establish the 3 DPVS ideal model according to the requirements list. This list is the result of obtaining requirements from customer demands, and current and future needs of dynamic cell culture studies. The attributes are the objectives to be realized by the 3 DPVS conceptual solutions. In brief, these attributes chiefly include the perspectives of dynamic and static functioning of the 3 DPVS:  
* Scaffold's vibratory functionality;
* Vibration and frequency cycle performance;  
Figure 5: 14 Elements list for design initiation of the 3 DPVS project. Scaffold's geometric and architectural characteristics;
* Biomedical control factors;
* Material composition and biocompatibility;
* Fabrication availability. Relationships between these attributes need to be analyzed. The weight of each attribute can be determined according to the comparative importance of each requirement. The output of this step is a set of attributes of 3 DPVS to be used in both the next step as well as the first step of concept evaluation. _Step 2: Analyzing Current or Existing Solutions_  
A novel 3 DPVS might be achieved by different types of systems that apply a different vibration mechanism, scaffold design and fabrication technology. Therefore, one main task of concept generation is to identify the appropriate scaffold base model, vibration and fabrication strategies to create new solutions or improve the current 3D scaffold solutions. The basic conceptual solution is a new scaffold model that has dynamic vibratory functions and generates frequencies with flexibility, which is the gap in traditional 3D cell culture scaffolds with vibrations. For example, in this model, the designed scaffold can vibrate via different non-mechanical vibrations, such as vibrations via acoustic waves or phonic waves. Basic solutions chiefly include:  
* Existing vibration mechanisms for 3D or 2D dynamic cell culture;
* Possible base model of 3D scaffold that could be started in the conceptual design;
* Smart materials that can generate vibratory functions;
* Tailored characteristics of the scaffold in geometry, mechanical and surface control;
* 3 DP fabrication methods available for such characteristics. _Step 3: Design Innovation and Concept Generation to Create New Solutions_  
Step 3 is the most important Step for innovating the 3 DPVS, the process of which is illustrated in Section 3.4. This step will generate ideas to solve the problems identified in step 2. These problems are normally related to the limitations and gaps of creating the 3 DPVS in the current solution and new ideas need to be introduced to solve them. In the 3 DPVS design, this step can be the most innovative part as previously existing ideas by researchers cannot realize the proposed functions of the 3 DPVS. When new ideas are put up, we can improve the basic solution and generate new concepts to realize the 3 DPVS design. These solutions will be the alternative conceptual solutions to be judged in the concept evaluation after being further analyzed and improved in the next step. Two tasks of this step include:  
* Conceptual structures as an intermediate between base and ideal model will be further established;
* Innovation methodology and tools will be used to create new ideas. Some possible solutions for the 3 DPVS could be generated. Here, we can make some suppositions.