Welcome back to my learning diary! As I work toward my Google Data Analytics Professional Certificate and prepare for my Cambridge B2 exam, I am documenting every step. Today, I am diving into the «Data Ecosystem»—the invisible world where data lives, breathes, and helps us make smarter choices. 📊

📑 Index

1. The Ancient Origins of Data Analysis
2. What is a Data Ecosystem?
3. Making Better, Data-Driven Decisions
4. Data vs. Gut Instinct: The Detective’s Dilemma
5. Key Takeaways & Knowledge Check

🏛️ 1. The Ancient Origins of Data Analysis

Did you know that data analysis isn’t a modern invention? It is rooted in statistics, which goes back as far as Ancient Egypt.

• The Pyramids: Egyptians used papyri to record calculations and theories, creating the earliest versions of spreadsheets.
• Evolution: While the tools have changed, the core idea—collecting information to drive success—remains the same.

🌐 2. What is a Data Ecosystem?

A data ecosystem is a collection of interacting elements that produce, manage, store, and share data. Think of it like a biological ecosystem, but for information!

The three main pillars are:

• Hardware & Software: The physical and digital tools we use.
• People: The analysts (like us!) who harness the power of the data.
• The Cloud: A virtual location that allows us to access data over the internet instead of local hard drives.

💡 3. Making Better, Data-Driven Decisions

Data-driven decision-making means using facts to guide business strategy. Instead of guessing, organizations use data to solve problems like low employee retention or improving brand recognition.

Pro Tip: Always involve Subject Matter Experts (SMEs). These are people familiar with the business problem who can help identify inconsistencies and validate your findings.

🕵️ 4. Data vs. Gut Instinct: The Detective’s Dilemma

Data analysts are like detectives; both follow clues and collect evidence to find the truth.

• Gut Instinct: This is an intuitive «feeling» based on past experience.
• The Risk: Relying only on a hunch can lead to biased or costly mistakes.
• The Solution: Find the «perfect blend» of data and business knowledge. Use more data for high-resource projects, and lean more on experience for «rush» projects

📝 5. Key Takeaways & Knowledge Check

To wrap up Part 3, remember that the Google Data Analysis Process follows six clear steps: Ask, Prepare, Process, Analyze, Share, and Act. Whether you are analyzing taxi ride demand or helping a retail store predict purchases, these fundamentals will keep you on track!

1️⃣Introduction

In this series of posts, I will document my journey through the Google Data Analytics Professional Certificate on Coursera. I was fortunate to receive a scholarship from Google, and I decided to take the course in English to improve both my data analytics skills and my English writing while preparing for the Cambridge B2 exam. My goal is to create a learning diary where I summarize the most important concepts from each lesson, reflect on what I learn, and gradually build a personal knowledge base about data analysis, analytical thinking, and real-world applications of data

2️⃣Introduction to Data Analytics

The first video introduces the importance of data in today’s world. Many industries such as e-commerce, healthcare, finance, marketing, and technology rely heavily on data to improve their processes, identify opportunities, develop new products, and make better decisions. Data can be understood as a collection of facts, including numbers, images, words, measurements, observations, or videos. Data analysis is the process of collecting, transforming, and organizing this information in order to draw conclusions and support informed decision-making.

The lesson also emphasizes that data is everywhere. Every time we search online, stream music, use GPS, read product reviews, shop online, or post something on social media, we are both using and creating data. The amount of data generated globally is enormous. For example, Google processes more than 40,000 searches per second, which represents billions of searches every day. Because of this massive amount of information, organizations increasingly depend on data analysts to interpret data and help guide strategic decisions.

The course also introduces the main stages of the data analysis process: 1) Ask 2) Prepare 3) Process 4) Analyze 5) Share 6) Act

These steps form the framework that will guide the entire certificate program.

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3️⃣ Googlers introduced in the video

Several Google professionals appear in the video to explain different aspects of data analytics and share their experience working in the industry:

• Tony — Program Manager at Google and Data Analyst
  Introduces the course and explains the importance of data analytics.
• Angie — Program Manager of Engineering at Google
  Explains the importance of data cleaning and how understanding data deeply can feel like solving a mystery.
• Alex — Research Scientist at Google
  Studies the impact of artificial intelligence on society and users.
• Lila Jones — Member of the Google Cloud team
  Leads teams that help customers move their systems and data to cloud technologies.
• Evan — Learning Portfolio Manager at Google
  Designs educational programs and training related to big data technologies.

Later in the course, other instructors will guide each stage of the analytics process.

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4️⃣ Personal reflections

Something that surprised me

The number of industries where data analysts can contribute. Data analytics is useful in many fields such as healthcare, finance, marketing, technology, and e-commerce.

Something I already knew

The idea that data is everywhere. The analytical process also reminds me of the DAFO (SWOT) analysis framework, where structured steps help analyze a situation and make better decisions.

Something new I learned

I learned how many different teams work at Google and how data plays a role in many areas such as engineering, research, cloud computing, and education.

5️⃣ Why I’m Taking This Course

I decided to take the Google Data Analytics Professional Certificate after receiving a scholarship from Google. Data is becoming increasingly important in almost every industry, and I wanted to better understand how organizations use data to make decisions and solve real-world problems.

Another reason I chose this course is that I want to improve my professional skills while also practicing my English. Since I am preparing for the Cambridge B2 exam, I decided to complete the entire course in English and document my learning process through this blog.

By writing about each lesson, I hope to reinforce what I learn, improve my technical vocabulary, and build a personal record of my progress in data analytics. Over time, this learning diary will also become a small portfolio that shows how my understanding of data analysis develops step by step.

Title (H1)
Starting the Google Data Analytics Certificate

Heading (H2)
Introduction

Heading (H2)
What is Data Analytics?

Heading (H2)
The Data Analysis Process

Heading (H2)
My Personal Notes

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What I Learned in This Lesson

Watched: 16/07 @ Lunch time at SkyShowtime

🕵️ Mobland 1×01: Where Loyalty Ends and Blood Begins 🔥

Welcome to the gritty underworld of Mobland, where power is currency and trust is always in short supply. Episode 1 kicks off with a bang—literally. In a city ruled by shadows, we meet Vincent, a man torn between family ties and criminal ambition. When a botched deal lights the fuse, alliances crumble and enemies rise.

This explosive premiere sets the tone for a season drenched in danger, betrayal, and street justice. Whether you’re here for the mob drama, the sharp dialogue, or the slow-burn tension, Mobland doesn’t disappoint.

📺 Catch up now and dive deep into the chaos—Mobland 1×01 is just the beginning.

Main scenes of the Mobland 1×01:
Dogans and Lazaros meeting: The initial tense negotiation for peace.

Eddie Harrigan’s return home: The aftermath of the stabbing and the family’s cover-up.

Harry at the hospital with Hughie: Harry intimidating Hughie to change his story.

Harry and the coffin discussion: A brief, more mundane interlude.

Jan’s distress over Tommy: Jan’s worry about their son’s disappearance.

Richie’s call to Kevin: Richie’s enraged threats after finding out Tommy was with Eddie.

Harry and Gina’s study session: A moment of normalcy and family interaction.

Harry’s apology to Jan: Harry attempting to make amends for their argument.

Conrad’s meeting with Harry and the «stick or twist» decision: The planned ambush at the gym and Conrad’s ultimate decision to let Richie live.

Conrad’s family meeting and the fentanyl plan: Conrad outlining his new business venture and testing Archie’s loyalty.

Mobland 1×01: Complete Scene Breakdown with Timestamps

Here is the complete and corrected breakdown of the scenes from «Mobland 1×01» with their corresponding timestamps, covering the entire chapter from start to finish.

• 00:00:01 – 00:01:21 The Peace Negotiation (Conrad, Dogans, Lazaros): Conrad mediates a tense meeting between the Dogans and the Lazaros, aiming to resolve their conflict. They agree to a handshake for peace but refuse to apologize, highlighting the fragility of the truce.
• 00:01:22 – 00:02:25 Conrad’s Discussion with His Associate (Post-Negotiation): Conrad discusses the outcome of the meeting, expressing skepticism about the lasting peace. He reveals that Mehmet and Costas have been «skimming,» leading him to conclude it’s «pruning time» for their organization.
• 00:02:26 – 00:04:15 Dr. Mistry’s Clinic and Hospital Admissions: This segment introduces Mr. Da Souza at Dr. Mistry’s clinic. It also covers the admission of Hughie Campbell to Homerton Memorial Hospital following his stabbing.
• 00:04:16 – 00:05:32 Conrad’s «Change of Plan»: Conrad directs Paul to handle business in Hackney and instructs Harry to contact «the Maltese» with a lucrative heroin deal, giving them 24 hours to respond. He also reflects on his long career.
• 00:05:34 – 00:06:40 Musical Interlude / Transition: The song «Starburster» by Fontaines D.C. plays, marking a transition in the narrative.
• 00:06:41 – 00:08:00 Eddie, Tommy, and Friends in the Taxi: Eddie Harrigan, Tommy Stevenson, and their friends share a taxi ride, discussing their plans for the night, with banter about their «cooked» state and a joke referencing the Kray twins.
• 00:08:01 – 00:10:48 The Club Entrance and Confrontation: The group enters a club using Eddie’s name. Inside, a confrontation escalates quickly from a splash of water to a physical fight where Eddie stabs someone, asserting dominance.
• 00:10:49 – 00:11:08 Eddie and Tommy Flee the Club: Eddie and Tommy quickly leave the club after the stabbing incident.
• 00:11:09 – 00:11:55 Eddie and Tommy’s Post-Stabbing Discussion: Eddie and Tommy discuss the stabbing. Tommy is visibly shaken, and Eddie attempts to reassure him about the situation.
• 00:11:56 – 00:12:24 Eddie’s Family Covers Up the Crime: Eddie returns home, and his family immediately begins to cover up the stabbing, disposing of bloody clothes and the knife.
• 00:12:25 – 00:12:39 Brief Morning Greetings (Tommy’s Ambiguity): Tommy exchanges brief morning greetings, but his exact location or situation remains unclear.
• 00:12:40 – 00:12:59 Harry and Associate Discuss Hughie’s Condition: Harry receives an update on Hughie Campbell’s condition in the hospital and learns he hasn’t been interviewed by the police yet.
• 00:13:04 – 00:14:10 Archie Arrives at Maeve’s: Archie visits Maeve, who playfully teases him about being presumed dead by Conrad and directs him to Conrad by the river.
• 00:14:21 – 00:15:23 Archie Joins Conrad Fishing: Archie finds Conrad fly fishing. They discuss fishing, and Conrad reveals a disturbing memory involving Uncle Tommy.
• 00:15:24 – 00:16:11 Harry Intimidates Hughie at the Hospital: Harry confronts Hughie at Homerton Memorial Hospital, dismissing his stab wound and coercing him to lie to the police, fabricating a story about being on ketamine and unable to identify his attacker.
• 00:16:12 – 00:17:16 Harry and Wicker Coffins: Harry discusses the cost and environmental benefits of wicker coffins with another individual, suggesting a more pragmatic side to his character.
• 00:17:17 – 00:18:27 Jan’s Distress Over Tommy’s Disappearance: Harry’s wife, Jan, expresses her deep distress and worry over their son Tommy not coming home and lying about his whereabouts. Harry initially dismisses her concerns.
• 00:18:28 – 00:20:13 Richie Stevenson’s Frantic Search and Threat to Kevin: Richie, Tommy’s father, obtains CCTV footage confirming Tommy was with Eddie. Enraged, he calls Kevin, threatening the Harrigan family if Tommy isn’t returned by the end of the day.
• 00:20:14 – 00:22:15 Harry Studies with Gina: Harry’s daughter, Gina, helps him with his studies, quizzing him on philosophical concepts related to happiness and memory.
• 00:22:16 – 00:24:28 Harry’s Apology to Jan and Agreement to Therapy: Harry attempts to apologize to Jan for a previous argument, struggling to recall specifics. Jan plays a recording, reminding him of his defensiveness, leading him to reluctantly agree to couples counseling and promise to help with Maria’s mother.
• 00:24:29 – 00:25:29 Harry Receives Call about Richie/Eddie Situation: Harry gets an urgent call from Kevin about Richie’s threats and Eddie’s continued denials regarding Tommy’s whereabouts.
• 00:25:30 – 00:26:29 Harry Calls Conrad for Guidance: Recognizing the severity, Harry calls Conrad («the governor») to discuss the escalating situation with Richie and Eddie.
• 00:26:30 – 00:27:54 Conrad’s Instructions to Harry (Pre-Meeting Setup): Conrad instructs Harry to come to Moody’s gym, a neutral ground, but secretly tells him to bring his crew and «take out» Richie if the opportunity arises and Richie becomes unruly.
• 00:27:55 – 00:28:44 Harry’s Ambush Planning: Harry meticulously plans the ambush at the gym, positioning Zosia and Kiko for overwatch, with a hand tap as the signal to «give Richie the good news.»
• 00:28:45 – 00:29:43 Meeting at Moody’s Gym (Initial Exchange): Moody, the mediator, collects a 50 grand deposit from both Harry and Richie to ensure good conduct.
• 00:29:44 – 00:30:46 Richie Demands to See Eddie/Moody’s Promise: Richie, consumed by worry for Tommy, demands to see Eddie. Moody offers to speak to Eddie personally and promises answers by noon the next day.
• 00:30:47 – 00:30:57 Harry Departs Moody’s Gym: Harry exits the gym, with a brief farewell exchange.
• 00:30:58 – 00:32:04 Conrad’s Initial Decision on Richie’s Fate (Phone Call): Harry reports to Conrad, confirming Eddie’s lie and the potential for «war.» Conrad contemplates eliminating Richie.
• 00:32:05 – 00:32:53 Conrad Decides to «Stick» (Let Richie Live): As Richie approaches his car, Conrad, after a tense countdown from his associates, ultimately decides to «stick» (let Richie live), giving the order to stand down.
• 00:32:54 – 00:34:03 Conrad Explains His Decision (Post-Decision): Conrad explains his reasoning for sparing Richie: they still need to know what Eddie knows and Tommy’s whereabouts. He also wants to be present for Richie’s eventual downfall.
• 00:34:04 – 00:36:58 Family Meeting Begins (Arrivals and Banter): The scene shifts to Conrad’s family meeting. Kevin, Seraphina, and Brendan arrive, engaging in playful banter about Seraphina being Conrad’s «number one daughter» and Brendan’s «dapper» scarf.
• 00:36:59 – 00:38:09 Discussion of Tommy’s Reputation and Emigration: Archie expresses his dismay about Uncle Tommy «having a fiddle» and asks if that’s why he «emigrated,» to which Conrad humorously replies, «To a pig farm in Norfolk.»
• 00:38:10 – 00:38:51 Maeve’s Warning about Archie and «The Fire»: Maeve subtly warns Conrad that Archie has been going behind his back with «The Fire,» hinting at a betrayal.
• 00:38:52 – 00:43:08 Conrad Presents the Fentanyl Plan: Conrad unveils his ambitious new business plan to enter the fentanyl market, explaining his strategy to let Richie and the Mexicans take the fall before his family steps in.
• 00:43:09 – 00:44:26 Archie’s Hesitation and Conrad’s Accusation: Archie voices his reservations about the fentanyl plan, arguing about timing and the existing beef with Richie. Conrad then accuses Archie of being a «traitor» and taking money from Richie.
• 00:44:27 – 00:46:27 The «Piss-Take» Revelation (Loyalty Test): Maeve and Conrad reveal that the accusation against Archie was a «windup» or «piss-take»—a deliberate test of his loyalty. Archie is clearly shocked and relieved.
• 00:46:28 – 00:47:00 Aftermath of the Test and Call to Harry: Archie reacts to the prank, expressing his relief. Conrad then instructs someone to «Call Harry.»
• 00:47:01 – 00:47:09 Final Moments/Transition: A brief moment before the ending music begins.
• 00:47:10 – 00:49:07 Ending Music and Credits: The chapter concludes with the song «Starburster» by Fontaines D.C. playing as the credits likely rol

Además de seguir el curso, voy a ir anotando y poniendo en práctica todo lo que vemos.

La web es: https://boluda.com/curso/seo/1-introduccion-y-conceptos-basicos-de-seo/

Concepos básicos de SEO:

Indexar vs. rankear:

De todas las webs que están «Indexadas» – rankeea las mejores.

SERP: Search Engine Results Page – la página que muestra los enlaces.

Intentción de busqueda: navegacional (para a ir a un web conocida, buscas eldiario . es en lugar de ir a la web, transaccional (compra) o informacional (busqueda información)

Keyword / palabras claves

Longtail: apellidos a la keyword. cuanto más cola tiene una palabra clave, menor es la competencia.

SEO off page –> fuera de nuestra web ( sobre todo, linkbuilding : generación de enlaces)

SEO on page –> va a ANTES del seo off page.

ORDEN DEL CURSO:

SEO on page: Indexación: qué podemos hacer para que google entienda mejor nuestra página. Cuando indexar o no nuestra página, para hacerla interesante para google.

Contenido

SEO off page: Link building

Experiencia de usuario: rankbrain: premia a las webs que hacen que no reboten los usuarios.

FACTORES más importantes de posicionamiento: 1. Enlaces. 2. On page (se refiere a la parte más técnica de la web, lo que pasa dentro). 3. RankBrain: cómo responde + OTROS MUCHOS ( google cuenta hasta 200, aunque no sé sabe cuales son)