Modeling and Analyzing Openness Trade-Offs in Software Platforms: A Goal-Oriented Approach

2017 ◽  
pp. 33-49 ◽  
Author(s):  
Mahsa H. Sadi ◽  
Eric Yu
Keyword(s):  
Trade Offs ◽  
Software Platforms ◽  
Oriented Approach

Migrating a Legacy Web-Based Document-Analysis Application to Hadoop and HBase

2012 ◽  
pp. 226-247 ◽  
Author(s):  
Himanshu Vashishtha ◽  
Michael Smit ◽  
Eleni Stroulia
Keyword(s):  
Development Activity ◽  
Web Based ◽  
Computing Platform ◽  
Trade Offs ◽  
Service Oriented ◽  
Analysis Application ◽  
Software Platforms ◽  
And Performance ◽  
Web Based System

Migrating a legacy application to a more modern computing platform is a recurring software-development activity. This chapter describes the authors’ experience with a contemporary rendition of this activity, migrating a Web-based system to a service-oriented application on two different cloud software platforms, Hadoop and HBase. Using the case study as a running example, they review the information needed for a successful migration and examine the trade-offs between development/re-design effort and performance/scalability improvements. The two levels of re-design, towards Hadoop and HBase, require notably different levels of effort, and as the authors found through exercising the migrated applications, they achieve different benefits. The authors found that both redesigns led to substantial benefit in performance improvement, and that expending the additional effort required by the more complex migration resulted in notable improvements in the ability to leverage the benefits of the platform.

Matching method with theory in person-oriented developmental psychopathology research

2010 ◽  
Vol 22 (2) ◽  
pp. 239-254 ◽  
Author(s):  
Sonya K. Sterba ◽  
Daniel J. Bauer
Keyword(s):  
Developmental Psychopathology ◽  
Matching Method ◽  
The Past ◽  
Model Based ◽  
Trade Offs ◽  
Oriented Approach ◽  
Do So

AbstractThe person-oriented approach seeks to match theories and methods that portray development as a holistic, highly interactional, and individualized process. Over the past decade, this approach has gained popularity in developmental psychopathology research, particularly as model-based varieties of person-oriented methods have emerged. Although these methods allow some principles of person-oriented theory to be tested, little attention has been paid to the fact that these methods cannot test other principles, and may actually be inconsistent with certain principles. Lacking clarification regarding which aspects of person-oriented theory are testable under which person-oriented methods, assumptions of the methods have sometimes been presented as testable hypotheses or interpreted as affirming the theory. This general blurring of the line between person-oriented theory and method has even led to the occasional perception that the method is the theory and vice versa. We review assumptions, strengths, and limitations of model-based person-oriented methods, clarifying which theoretical principles they can test and the compromises and trade-offs required to do so.

Novel players fine-tune plant trade-offs

2015 ◽  
Vol 58 ◽  
pp. 83-100 ◽  
Author(s):  
Selena Gimenez-Ibanez ◽  
Marta Boter ◽  
Roberto Solano
Keyword(s):  
Ubiquitin Ligase ◽  
Feedback Loop ◽  
Molecular Level ◽  
26S Proteasome ◽  
Signalling Molecules ◽  
Transcriptional Reprogramming ◽  
Trade Offs ◽  
Jaz Proteins ◽  
Regulatory Feedback Loop ◽  
Fine Tune

Jasmonates (JAs) are essential signalling molecules that co-ordinate the plant response to biotic and abiotic challenges, as well as co-ordinating several developmental processes. Huge progress has been made over the last decade in understanding the components and mechanisms that govern JA perception and signalling. The bioactive form of the hormone, (+)-7-iso-jasmonyl-l-isoleucine (JA-Ile), is perceived by the COI1–JAZ co-receptor complex. JASMONATE ZIM DOMAIN (JAZ) proteins also act as direct repressors of transcriptional activators such as MYC2. In the emerging picture of JA-Ile perception and signalling, COI1 operates as an E3 ubiquitin ligase that upon binding of JA-Ile targets JAZ repressors for degradation by the 26S proteasome, thereby derepressing transcription factors such as MYC2, which in turn activate JA-Ile-dependent transcriptional reprogramming. It is noteworthy that MYCs and different spliced variants of the JAZ proteins are involved in a negative regulatory feedback loop, which suggests a model that rapidly turns the transcriptional JA-Ile responses on and off and thereby avoids a detrimental overactivation of the pathway. This chapter highlights the most recent advances in our understanding of JA-Ile signalling, focusing on the latest repertoire of new targets of JAZ proteins to control different sets of JA-Ile-mediated responses, novel mechanisms of negative regulation of JA-Ile signalling, and hormonal cross-talk at the molecular level that ultimately determines plant adaptability and survival.

Audiology: A Problem Oriented Approach

1978 ◽  
Vol 11 (3) ◽  
pp. 801-811
Author(s):  
John M. Page
Keyword(s):  
Oriented Approach
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