This analysis method is mainly used in safety engineering and reliability engineering to understand how systems can fail, to identify the best ways to reduce risk and to determine (or get a feeling for) event rates of a safety accident or a particular system level (functional) failure. 3 0 obj We are honored to serve the largest community of process improvement professionals in the world. A next “why” can be usefully posed, surfacing further detail, as shown in Figure 4. x��YYo�F~7���G2��I1xƙ ���('m���ؤBR���oU�A6E@0K���>غ�o�ݳ^��W_����^o�M�x�������������A��j���믣�����ۛ����R� In DMAIC (Define, Measure, Analyze, Improve, Control) projects, controllable x‘s, with verified impact and in the team’s sphere of influence, are used to drive the Y in the direction of project goals. 5 0 obj The 14-day-old mulberry seedlings were independently treated with 200 mM NaCl and 200 mM mannitol. The treated seedlings were sampled at 0, 2, 6 and 12 h after treatment. Beginning with an effect that has been observed and verified, a team repeatedly asks, “Why does this situation exist?” When each answer describes a situation that is at least a contributor, the “why” moves down a level to consider why that situation happens. Thanks for the excellent article. Wang and Marron (2007)extended the realm of FDA to the domain of Object Oriented Data Analysis (OODA). <>>> Fault tree analysis (FTA) is a top-down, deductive failure analysis in which an undesired state of a system is analyzed using Boolean logic to combine a series of lower-level events. The primers used are specified in Table S1 (available as Supplementary Data at Tree Physiology Online). endobj ��;ؓ���r;�ݏ��5[�"���]8S7��sC�#�EC�q%|a�M����E�t�#���F{���-�J��X(YG��mEN�v�)X�}UA'|@�H��(�6JV�I�}��� The immune and circulatory systems of mammals are functionally integrated, as exemplified by the immune function of the spleen and lymph nodes. Factors can describe measures that range from continuous (like time and capacity) to categorical (like small, medium and large) – but they should all describe measures. <> Morphological. Functional analysis of rubber tree receptor-like cytoplasmic kinase HbBIK1 in plant root development and immune response Authors (first, second and last of 7) Shengmin Zhang As a simple example Figure 4 shows the Function Means Tree for the tea making. X]�#�O+��#P��eD�OF�v:&��@ȣ3 � ɒq�ހ��9�^�ۛ4z1��>~{{�G�o��_�7� ⟷7���H�L�2�Y�y�����_D�@��H��8�P��p�\�dN�=�b��?��`�. A functional tree it is much easier to read and review if each node label focuses on a positive, active verb (like “measuring,” “gathering” or “reading” in Figure 7). Functional data analysis (FDA) offers many powerful statistical tools for analyzing a population of curves, and its methodology and application has been well documented in Ramsay and Silverman (2002, 2005) and Ferraty and Vieu (2006). ... and a strong platform for functional analysis of metagenomic data is becoming increasingly important. A Y-to-x tree begins with an important results measure (the Y) and asks the question, “What factors drive this Y?” While that is not completely different than the cause-and-effect question, the thrust and content of this tree want to be distinctly different. <> endobj 10 0 obj 2 0 obj stream Figure 7: Improved Functional Analysis Tree with Latent and More Detailed Functions Identified. More recently, object-oriented thinking has developed “use cases” which broaden the use (still centered on verbs) to software and business systems. These few concepts or themes distill the meaning that may not be immediately evident when looking at the many lower level facts at the bottom of Figure 8.